28977780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{383}}^1$

素因数の和:505

約数の個数: 96

約数和(自身を含む): 88510464

約数和(自身を除く): 59532684

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 97, 130, 156, 194, 195, 260, 291, 383, 388, 390, 485, 582, 766, 780, 970, 1149, 1164, 1261, 1455, 1532, 1915, 1940, 2298, 2522, 2910, 3783, 3830, 4596, 4979, 5044, 5745, 5820, 6305, 7566, 7660, 9958, 11490, 12610, 14937, 15132, 18915, 19916, 22980, 24895, 25220, 29874, 37151, 37830, 49790, 59748, 74302, 74685, 75660, 99580, 111453, 148604, 149370, 185755, 222906, 298740, 371510, 445812, 482963, 557265, 743020, 965926, 1114530, 1448889, 1931852, 2229060, 2414815, 2897778, 4829630, 5795556, 7244445, 9659260, 14488890, 28977780]

約数ペア:

[(1, 28977780), (2, 14488890), (3, 9659260), (4, 7244445), (5, 5795556), (6, 4829630), (10, 2897778), (12, 2414815), (13, 2229060), (15, 1931852), (20, 1448889), (26, 1114530), (30, 965926), (39, 743020), (52, 557265), (60, 482963), (65, 445812), (78, 371510), (97, 298740), (130, 222906), (156, 185755), (194, 149370), (195, 148604), (260, 111453), (291, 99580), (383, 75660), (388, 74685), (390, 74302), (485, 59748), (582, 49790), (766, 37830), (780, 37151), (970, 29874), (1149, 25220), (1164, 24895), (1261, 22980), (1455, 19916), (1532, 18915), (1915, 15132), (1940, 14937), (2298, 12610), (2522, 11490), (2910, 9958), (3783, 7660), (3830, 7566), (4596, 6305), (4979, 5820), (5044, 5745)]