8720010

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{257}}^1$

素因数の和:312

約数の個数: 96

約数和(自身を含む): 25356240

約数和(自身を除く): 16636230

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 29, 30, 39, 45, 58, 65, 78, 87, 90, 117, 130, 145, 174, 195, 234, 257, 261, 290, 377, 390, 435, 514, 522, 585, 754, 771, 870, 1131, 1170, 1285, 1305, 1542, 1885, 2262, 2313, 2570, 2610, 3341, 3393, 3770, 3855, 4626, 5655, 6682, 6786, 7453, 7710, 10023, 11310, 11565, 14906, 16705, 16965, 20046, 22359, 23130, 30069, 33410, 33930, 37265, 44718, 50115, 60138, 67077, 74530, 96889, 100230, 111795, 134154, 150345, 193778, 223590, 290667, 300690, 335385, 484445, 581334, 670770, 872001, 968890, 1453335, 1744002, 2906670, 4360005, 8720010]

約数ペア:

[(1, 8720010), (2, 4360005), (3, 2906670), (5, 1744002), (6, 1453335), (9, 968890), (10, 872001), (13, 670770), (15, 581334), (18, 484445), (26, 335385), (29, 300690), (30, 290667), (39, 223590), (45, 193778), (58, 150345), (65, 134154), (78, 111795), (87, 100230), (90, 96889), (117, 74530), (130, 67077), (145, 60138), (174, 50115), (195, 44718), (234, 37265), (257, 33930), (261, 33410), (290, 30069), (377, 23130), (390, 22359), (435, 20046), (514, 16965), (522, 16705), (585, 14906), (754, 11565), (771, 11310), (870, 10023), (1131, 7710), (1170, 7453), (1285, 6786), (1305, 6682), (1542, 5655), (1885, 4626), (2262, 3855), (2313, 3770), (2570, 3393), (2610, 3341)]