211323280

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1$

素因数の和:142

約数の個数: 240

約数和(自身を含む): 618817536

約数和(自身を除く): 407494256

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 37, 40, 47, 49, 56, 62, 70, 74, 80, 94, 98, 112, 124, 140, 148, 155, 185, 188, 196, 217, 235, 245, 248, 259, 280, 296, 310, 329, 370, 376, 392, 434, 470, 490, 496, 518, 560, 592, 620, 658, 740, 752, 784, 868, 940, 980, 1036, 1085, 1147, 1240, 1295, 1316, 1457, 1480, 1519, 1645, 1736, 1739, 1813, 1880, 1960, 2072, 2170, 2294, 2303, 2480, 2590, 2632, 2914, 2960, 3038, 3290, 3472, 3478, 3626, 3760, 3920, 4144, 4340, 4588, 4606, 5180, 5264, 5735, 5828, 6076, 6580, 6956, 7252, 7285, 7595, 8029, 8680, 8695, 9065, 9176, 9212, 10199, 10360, 11470, 11515, 11656, 12152, 12173, 13160, 13912, 14504, 14570, 15190, 16058, 17360, 17390, 18130, 18352, 18424, 20398, 20720, 22940, 23030, 23312, 24304, 24346, 26320, 27824, 29008, 29140, 30380, 32116, 34780, 36260, 36848, 40145, 40796, 45880, 46060, 48692, 50995, 53909, 56203, 58280, 60760, 60865, 64232, 69560, 71393, 72520, 80290, 81592, 85211, 91760, 92120, 97384, 101990, 107818, 112406, 116560, 121520, 121730, 128464, 139120, 142786, 145040, 160580, 163184, 170422, 184240, 194768, 203980, 215636, 224812, 243460, 269545, 281015, 285572, 321160, 340844, 356965, 377363, 407960, 426055, 431272, 449624, 486920, 539090, 562030, 571144, 642320, 681688, 713930, 754726, 815920, 852110, 862544, 899248, 973840, 1078180, 1124060, 1142288, 1363376, 1427860, 1509452, 1704220, 1886815, 2156360, 2248120, 2641541, 2855720, 3018904, 3408440, 3773630, 4312720, 4496240, 5283082, 5711440, 6037808, 6816880, 7547260, 10566164, 13207705, 15094520, 21132328, 26415410, 30189040, 42264656, 52830820, 105661640, 211323280]

約数ペア:

[(1, 211323280), (2, 105661640), (4, 52830820), (5, 42264656), (7, 30189040), (8, 26415410), (10, 21132328), (14, 15094520), (16, 13207705), (20, 10566164), (28, 7547260), (31, 6816880), (35, 6037808), (37, 5711440), (40, 5283082), (47, 4496240), (49, 4312720), (56, 3773630), (62, 3408440), (70, 3018904), (74, 2855720), (80, 2641541), (94, 2248120), (98, 2156360), (112, 1886815), (124, 1704220), (140, 1509452), (148, 1427860), (155, 1363376), (185, 1142288), (188, 1124060), (196, 1078180), (217, 973840), (235, 899248), (245, 862544), (248, 852110), (259, 815920), (280, 754726), (296, 713930), (310, 681688), (329, 642320), (370, 571144), (376, 562030), (392, 539090), (434, 486920), (470, 449624), (490, 431272), (496, 426055), (518, 407960), (560, 377363), (592, 356965), (620, 340844), (658, 321160), (740, 285572), (752, 281015), (784, 269545), (868, 243460), (940, 224812), (980, 215636), (1036, 203980), (1085, 194768), (1147, 184240), (1240, 170422), (1295, 163184), (1316, 160580), (1457, 145040), (1480, 142786), (1519, 139120), (1645, 128464), (1736, 121730), (1739, 121520), (1813, 116560), (1880, 112406), (1960, 107818), (2072, 101990), (2170, 97384), (2294, 92120), (2303, 91760), (2480, 85211), (2590, 81592), (2632, 80290), (2914, 72520), (2960, 71393), (3038, 69560), (3290, 64232), (3472, 60865), (3478, 60760), (3626, 58280), (3760, 56203), (3920, 53909), (4144, 50995), (4340, 48692), (4588, 46060), (4606, 45880), (5180, 40796), (5264, 40145), (5735, 36848), (5828, 36260), (6076, 34780), (6580, 32116), (6956, 30380), (7252, 29140), (7285, 29008), (7595, 27824), (8029, 26320), (8680, 24346), (8695, 24304), (9065, 23312), (9176, 23030), (9212, 22940), (10199, 20720), (10360, 20398), (11470, 18424), (11515, 18352), (11656, 18130), (12152, 17390), (12173, 17360), (13160, 16058), (13912, 15190), (14504, 14570)]