28662660

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1361}}^1$

素因数の和:1395

約数の個数: 120

約数和(自身を含む): 96903576

約数和(自身を除く): 68240916

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 27, 30, 36, 39, 45, 52, 54, 60, 65, 78, 81, 90, 108, 117, 130, 135, 156, 162, 180, 195, 234, 260, 270, 324, 351, 390, 405, 468, 540, 585, 702, 780, 810, 1053, 1170, 1361, 1404, 1620, 1755, 2106, 2340, 2722, 3510, 4083, 4212, 5265, 5444, 6805, 7020, 8166, 10530, 12249, 13610, 16332, 17693, 20415, 21060, 24498, 27220, 35386, 36747, 40830, 48996, 53079, 61245, 70772, 73494, 81660, 88465, 106158, 110241, 122490, 146988, 159237, 176930, 183735, 212316, 220482, 244980, 265395, 318474, 353860, 367470, 440964, 477711, 530790, 551205, 636948, 734940, 796185, 955422, 1061580, 1102410, 1433133, 1592370, 1910844, 2204820, 2388555, 2866266, 3184740, 4777110, 5732532, 7165665, 9554220, 14331330, 28662660]

約数ペア:

[(1, 28662660), (2, 14331330), (3, 9554220), (4, 7165665), (5, 5732532), (6, 4777110), (9, 3184740), (10, 2866266), (12, 2388555), (13, 2204820), (15, 1910844), (18, 1592370), (20, 1433133), (26, 1102410), (27, 1061580), (30, 955422), (36, 796185), (39, 734940), (45, 636948), (52, 551205), (54, 530790), (60, 477711), (65, 440964), (78, 367470), (81, 353860), (90, 318474), (108, 265395), (117, 244980), (130, 220482), (135, 212316), (156, 183735), (162, 176930), (180, 159237), (195, 146988), (234, 122490), (260, 110241), (270, 106158), (324, 88465), (351, 81660), (390, 73494), (405, 70772), (468, 61245), (540, 53079), (585, 48996), (702, 40830), (780, 36747), (810, 35386), (1053, 27220), (1170, 24498), (1361, 21060), (1404, 20415), (1620, 17693), (1755, 16332), (2106, 13610), (2340, 12249), (2722, 10530), (3510, 8166), (4083, 7020), (4212, 6805), (5265, 5444)]