18816060

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:223

約数の個数: 96

約数和(自身を含む): 55121472

約数和(自身を除く): 36305412

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 53, 60, 61, 97, 106, 122, 159, 183, 194, 212, 244, 265, 291, 305, 318, 366, 388, 485, 530, 582, 610, 636, 732, 795, 915, 970, 1060, 1164, 1220, 1455, 1590, 1830, 1940, 2910, 3180, 3233, 3660, 5141, 5820, 5917, 6466, 9699, 10282, 11834, 12932, 15423, 16165, 17751, 19398, 20564, 23668, 25705, 29585, 30846, 32330, 35502, 38796, 48495, 51410, 59170, 61692, 64660, 71004, 77115, 88755, 96990, 102820, 118340, 154230, 177510, 193980, 308460, 313601, 355020, 627202, 940803, 1254404, 1568005, 1881606, 3136010, 3763212, 4704015, 6272020, 9408030, 18816060]

約数ペア:

[(1, 18816060), (2, 9408030), (3, 6272020), (4, 4704015), (5, 3763212), (6, 3136010), (10, 1881606), (12, 1568005), (15, 1254404), (20, 940803), (30, 627202), (53, 355020), (60, 313601), (61, 308460), (97, 193980), (106, 177510), (122, 154230), (159, 118340), (183, 102820), (194, 96990), (212, 88755), (244, 77115), (265, 71004), (291, 64660), (305, 61692), (318, 59170), (366, 51410), (388, 48495), (485, 38796), (530, 35502), (582, 32330), (610, 30846), (636, 29585), (732, 25705), (795, 23668), (915, 20564), (970, 19398), (1060, 17751), (1164, 16165), (1220, 15423), (1455, 12932), (1590, 11834), (1830, 10282), (1940, 9699), (2910, 6466), (3180, 5917), (3233, 5820), (3660, 5141)]