30197720

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:134

約数の個数: 128

約数和(自身を含む): 82944000

約数和(自身を除く): 52746280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 49, 56, 62, 70, 71, 98, 124, 140, 142, 155, 196, 217, 245, 248, 280, 284, 310, 343, 355, 392, 434, 490, 497, 568, 620, 686, 710, 868, 980, 994, 1085, 1240, 1372, 1420, 1519, 1715, 1736, 1960, 1988, 2170, 2201, 2485, 2744, 2840, 3038, 3430, 3479, 3976, 4340, 4402, 4970, 6076, 6860, 6958, 7595, 8680, 8804, 9940, 10633, 11005, 12152, 13720, 13916, 15190, 15407, 17395, 17608, 19880, 21266, 22010, 24353, 27832, 30380, 30814, 34790, 42532, 44020, 48706, 53165, 60760, 61628, 69580, 77035, 85064, 88040, 97412, 106330, 107849, 121765, 123256, 139160, 154070, 194824, 212660, 215698, 243530, 308140, 425320, 431396, 487060, 539245, 616280, 754943, 862792, 974120, 1078490, 1509886, 2156980, 3019772, 3774715, 4313960, 6039544, 7549430, 15098860, 30197720]

約数ペア:

[(1, 30197720), (2, 15098860), (4, 7549430), (5, 6039544), (7, 4313960), (8, 3774715), (10, 3019772), (14, 2156980), (20, 1509886), (28, 1078490), (31, 974120), (35, 862792), (40, 754943), (49, 616280), (56, 539245), (62, 487060), (70, 431396), (71, 425320), (98, 308140), (124, 243530), (140, 215698), (142, 212660), (155, 194824), (196, 154070), (217, 139160), (245, 123256), (248, 121765), (280, 107849), (284, 106330), (310, 97412), (343, 88040), (355, 85064), (392, 77035), (434, 69580), (490, 61628), (497, 60760), (568, 53165), (620, 48706), (686, 44020), (710, 42532), (868, 34790), (980, 30814), (994, 30380), (1085, 27832), (1240, 24353), (1372, 22010), (1420, 21266), (1519, 19880), (1715, 17608), (1736, 17395), (1960, 15407), (1988, 15190), (2170, 13916), (2201, 13720), (2485, 12152), (2744, 11005), (2840, 10633), (3038, 9940), (3430, 8804), (3479, 8680), (3976, 7595), (4340, 6958), (4402, 6860), (4970, 6076)]