28307700

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{443}}^1$

素因数の和:534

約数の個数: 108

約数和(自身を含む): 90181728

約数和(自身を除く): 61874028

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 71, 75, 90, 100, 142, 150, 180, 213, 225, 284, 300, 355, 426, 443, 450, 639, 710, 852, 886, 900, 1065, 1278, 1329, 1420, 1772, 1775, 2130, 2215, 2556, 2658, 3195, 3550, 3987, 4260, 4430, 5316, 5325, 6390, 6645, 7100, 7974, 8860, 10650, 11075, 12780, 13290, 15948, 15975, 19935, 21300, 22150, 26580, 31453, 31950, 33225, 39870, 44300, 62906, 63900, 66450, 79740, 94359, 99675, 125812, 132900, 157265, 188718, 199350, 283077, 314530, 377436, 398700, 471795, 566154, 629060, 786325, 943590, 1132308, 1415385, 1572650, 1887180, 2358975, 2830770, 3145300, 4717950, 5661540, 7076925, 9435900, 14153850, 28307700]

約数ペア:

[(1, 28307700), (2, 14153850), (3, 9435900), (4, 7076925), (5, 5661540), (6, 4717950), (9, 3145300), (10, 2830770), (12, 2358975), (15, 1887180), (18, 1572650), (20, 1415385), (25, 1132308), (30, 943590), (36, 786325), (45, 629060), (50, 566154), (60, 471795), (71, 398700), (75, 377436), (90, 314530), (100, 283077), (142, 199350), (150, 188718), (180, 157265), (213, 132900), (225, 125812), (284, 99675), (300, 94359), (355, 79740), (426, 66450), (443, 63900), (450, 62906), (639, 44300), (710, 39870), (852, 33225), (886, 31950), (900, 31453), (1065, 26580), (1278, 22150), (1329, 21300), (1420, 19935), (1772, 15975), (1775, 15948), (2130, 13290), (2215, 12780), (2556, 11075), (2658, 10650), (3195, 8860), (3550, 7974), (3987, 7100), (4260, 6645), (4430, 6390), (5316, 5325)]