28046580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1$

素因数の和:249

約数の個数: 96

約数和(自身を含む): 81661440

約数和(自身を除く): 53614860

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 61, 79, 97, 122, 158, 183, 194, 237, 244, 291, 305, 316, 366, 388, 395, 474, 485, 582, 610, 732, 790, 915, 948, 970, 1164, 1185, 1220, 1455, 1580, 1830, 1940, 2370, 2910, 3660, 4740, 4819, 5820, 5917, 7663, 9638, 11834, 14457, 15326, 17751, 19276, 22989, 23668, 24095, 28914, 29585, 30652, 35502, 38315, 45978, 48190, 57828, 59170, 71004, 72285, 76630, 88755, 91956, 96380, 114945, 118340, 144570, 153260, 177510, 229890, 289140, 355020, 459780, 467443, 934886, 1402329, 1869772, 2337215, 2804658, 4674430, 5609316, 7011645, 9348860, 14023290, 28046580]

約数ペア:

[(1, 28046580), (2, 14023290), (3, 9348860), (4, 7011645), (5, 5609316), (6, 4674430), (10, 2804658), (12, 2337215), (15, 1869772), (20, 1402329), (30, 934886), (60, 467443), (61, 459780), (79, 355020), (97, 289140), (122, 229890), (158, 177510), (183, 153260), (194, 144570), (237, 118340), (244, 114945), (291, 96380), (305, 91956), (316, 88755), (366, 76630), (388, 72285), (395, 71004), (474, 59170), (485, 57828), (582, 48190), (610, 45978), (732, 38315), (790, 35502), (915, 30652), (948, 29585), (970, 28914), (1164, 24095), (1185, 23668), (1220, 22989), (1455, 19276), (1580, 17751), (1830, 15326), (1940, 14457), (2370, 11834), (2910, 9638), (3660, 7663), (4740, 5917), (4819, 5820)]