20554240

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:98

約数の個数: 160

約数和(自身を含む): 59710464

約数和(自身を除く): 39156224

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 37, 40, 56, 62, 64, 70, 74, 80, 112, 124, 128, 140, 148, 155, 160, 185, 217, 224, 248, 256, 259, 280, 296, 310, 320, 370, 434, 448, 496, 512, 518, 560, 592, 620, 640, 740, 868, 896, 992, 1036, 1085, 1120, 1147, 1184, 1240, 1280, 1295, 1480, 1736, 1792, 1984, 2072, 2170, 2240, 2294, 2368, 2480, 2560, 2590, 2960, 3472, 3584, 3968, 4144, 4340, 4480, 4588, 4736, 4960, 5180, 5735, 5920, 6944, 7936, 8029, 8288, 8680, 8960, 9176, 9472, 9920, 10360, 11470, 11840, 13888, 15872, 16058, 16576, 17360, 17920, 18352, 18944, 19840, 20720, 22940, 23680, 27776, 32116, 33152, 34720, 36704, 39680, 40145, 41440, 45880, 47360, 55552, 64232, 66304, 69440, 73408, 79360, 80290, 82880, 91760, 94720, 111104, 128464, 132608, 138880, 146816, 160580, 165760, 183520, 256928, 277760, 293632, 321160, 331520, 367040, 513856, 555520, 587264, 642320, 663040, 734080, 1027712, 1284640, 1468160, 2055424, 2569280, 2936320, 4110848, 5138560, 10277120, 20554240]

約数ペア:

[(1, 20554240), (2, 10277120), (4, 5138560), (5, 4110848), (7, 2936320), (8, 2569280), (10, 2055424), (14, 1468160), (16, 1284640), (20, 1027712), (28, 734080), (31, 663040), (32, 642320), (35, 587264), (37, 555520), (40, 513856), (56, 367040), (62, 331520), (64, 321160), (70, 293632), (74, 277760), (80, 256928), (112, 183520), (124, 165760), (128, 160580), (140, 146816), (148, 138880), (155, 132608), (160, 128464), (185, 111104), (217, 94720), (224, 91760), (248, 82880), (256, 80290), (259, 79360), (280, 73408), (296, 69440), (310, 66304), (320, 64232), (370, 55552), (434, 47360), (448, 45880), (496, 41440), (512, 40145), (518, 39680), (560, 36704), (592, 34720), (620, 33152), (640, 32116), (740, 27776), (868, 23680), (896, 22940), (992, 20720), (1036, 19840), (1085, 18944), (1120, 18352), (1147, 17920), (1184, 17360), (1240, 16576), (1280, 16058), (1295, 15872), (1480, 13888), (1736, 11840), (1792, 11470), (1984, 10360), (2072, 9920), (2170, 9472), (2240, 9176), (2294, 8960), (2368, 8680), (2480, 8288), (2560, 8029), (2590, 7936), (2960, 6944), (3472, 5920), (3584, 5735), (3968, 5180), (4144, 4960), (4340, 4736), (4480, 4588)]