28305480

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1087}}^1$

素因数の和:1139

約数の個数: 128

約数和(自身を含む): 100270080

約数和(自身を除く): 71964600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 31, 35, 40, 42, 56, 60, 62, 70, 84, 93, 105, 120, 124, 140, 155, 168, 186, 210, 217, 248, 280, 310, 372, 420, 434, 465, 620, 651, 744, 840, 868, 930, 1085, 1087, 1240, 1302, 1736, 1860, 2170, 2174, 2604, 3255, 3261, 3720, 4340, 4348, 5208, 5435, 6510, 6522, 7609, 8680, 8696, 10870, 13020, 13044, 15218, 16305, 21740, 22827, 26040, 26088, 30436, 32610, 33697, 38045, 43480, 45654, 60872, 65220, 67394, 76090, 91308, 101091, 114135, 130440, 134788, 152180, 168485, 182616, 202182, 228270, 235879, 269576, 304360, 336970, 404364, 456540, 471758, 505455, 673940, 707637, 808728, 913080, 943516, 1010910, 1179395, 1347880, 1415274, 1887032, 2021820, 2358790, 2830548, 3538185, 4043640, 4717580, 5661096, 7076370, 9435160, 14152740, 28305480]

約数ペア:

[(1, 28305480), (2, 14152740), (3, 9435160), (4, 7076370), (5, 5661096), (6, 4717580), (7, 4043640), (8, 3538185), (10, 2830548), (12, 2358790), (14, 2021820), (15, 1887032), (20, 1415274), (21, 1347880), (24, 1179395), (28, 1010910), (30, 943516), (31, 913080), (35, 808728), (40, 707637), (42, 673940), (56, 505455), (60, 471758), (62, 456540), (70, 404364), (84, 336970), (93, 304360), (105, 269576), (120, 235879), (124, 228270), (140, 202182), (155, 182616), (168, 168485), (186, 152180), (210, 134788), (217, 130440), (248, 114135), (280, 101091), (310, 91308), (372, 76090), (420, 67394), (434, 65220), (465, 60872), (620, 45654), (651, 43480), (744, 38045), (840, 33697), (868, 32610), (930, 30436), (1085, 26088), (1087, 26040), (1240, 22827), (1302, 21740), (1736, 16305), (1860, 15218), (2170, 13044), (2174, 13020), (2604, 10870), (3255, 8696), (3261, 8680), (3720, 7609), (4340, 6522), (4348, 6510), (5208, 5435)]