28178460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{4231}}^1$

素因数の和:4283

約数の個数: 72

約数和(自身を含む): 87805536

約数和(自身を除く): 59627076

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 37, 45, 60, 74, 90, 111, 148, 180, 185, 222, 333, 370, 444, 555, 666, 740, 1110, 1332, 1665, 2220, 3330, 4231, 6660, 8462, 12693, 16924, 21155, 25386, 38079, 42310, 50772, 63465, 76158, 84620, 126930, 152316, 156547, 190395, 253860, 313094, 380790, 469641, 626188, 761580, 782735, 939282, 1408923, 1565470, 1878564, 2348205, 2817846, 3130940, 4696410, 5635692, 7044615, 9392820, 14089230, 28178460]

約数ペア:

[(1, 28178460), (2, 14089230), (3, 9392820), (4, 7044615), (5, 5635692), (6, 4696410), (9, 3130940), (10, 2817846), (12, 2348205), (15, 1878564), (18, 1565470), (20, 1408923), (30, 939282), (36, 782735), (37, 761580), (45, 626188), (60, 469641), (74, 380790), (90, 313094), (111, 253860), (148, 190395), (180, 156547), (185, 152316), (222, 126930), (333, 84620), (370, 76158), (444, 63465), (555, 50772), (666, 42310), (740, 38079), (1110, 25386), (1332, 21155), (1665, 16924), (2220, 12693), (3330, 8462), (4231, 6660)]