28605560

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1$

素因数の和:141

約数の個数: 128

約数和(自身を含む): 74649600

約数和(自身を除く): 46044040

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 23, 31, 34, 40, 46, 59, 62, 68, 85, 92, 115, 118, 124, 136, 155, 170, 184, 230, 236, 248, 295, 310, 340, 391, 460, 472, 527, 590, 620, 680, 713, 782, 920, 1003, 1054, 1180, 1240, 1357, 1426, 1564, 1829, 1955, 2006, 2108, 2360, 2635, 2714, 2852, 3128, 3565, 3658, 3910, 4012, 4216, 5015, 5270, 5428, 5704, 6785, 7130, 7316, 7820, 8024, 9145, 10030, 10540, 10856, 12121, 13570, 14260, 14632, 15640, 18290, 20060, 21080, 23069, 24242, 27140, 28520, 31093, 36580, 40120, 42067, 46138, 48484, 54280, 60605, 62186, 73160, 84134, 92276, 96968, 115345, 121210, 124372, 155465, 168268, 184552, 210335, 230690, 242420, 248744, 310930, 336536, 420670, 461380, 484840, 621860, 715139, 841340, 922760, 1243720, 1430278, 1682680, 2860556, 3575695, 5721112, 7151390, 14302780, 28605560]

約数ペア:

[(1, 28605560), (2, 14302780), (4, 7151390), (5, 5721112), (8, 3575695), (10, 2860556), (17, 1682680), (20, 1430278), (23, 1243720), (31, 922760), (34, 841340), (40, 715139), (46, 621860), (59, 484840), (62, 461380), (68, 420670), (85, 336536), (92, 310930), (115, 248744), (118, 242420), (124, 230690), (136, 210335), (155, 184552), (170, 168268), (184, 155465), (230, 124372), (236, 121210), (248, 115345), (295, 96968), (310, 92276), (340, 84134), (391, 73160), (460, 62186), (472, 60605), (527, 54280), (590, 48484), (620, 46138), (680, 42067), (713, 40120), (782, 36580), (920, 31093), (1003, 28520), (1054, 27140), (1180, 24242), (1240, 23069), (1357, 21080), (1426, 20060), (1564, 18290), (1829, 15640), (1955, 14632), (2006, 14260), (2108, 13570), (2360, 12121), (2635, 10856), (2714, 10540), (2852, 10030), (3128, 9145), (3565, 8024), (3658, 7820), (3910, 7316), (4012, 7130), (4216, 6785), (5015, 5704), (5270, 5428)]