77990940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{7103}}^1$

素因数の和:7179

約数の個数: 72

約数和(自身を含む): 240484608

約数和(自身を除く): 162493668

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 61, 90, 122, 180, 183, 244, 305, 366, 549, 610, 732, 915, 1098, 1220, 1830, 2196, 2745, 3660, 5490, 7103, 10980, 14206, 21309, 28412, 35515, 42618, 63927, 71030, 85236, 106545, 127854, 142060, 213090, 255708, 319635, 426180, 433283, 639270, 866566, 1278540, 1299849, 1733132, 2166415, 2599698, 3899547, 4332830, 5199396, 6499245, 7799094, 8665660, 12998490, 15598188, 19497735, 25996980, 38995470, 77990940]

約数ペア:

[(1, 77990940), (2, 38995470), (3, 25996980), (4, 19497735), (5, 15598188), (6, 12998490), (9, 8665660), (10, 7799094), (12, 6499245), (15, 5199396), (18, 4332830), (20, 3899547), (30, 2599698), (36, 2166415), (45, 1733132), (60, 1299849), (61, 1278540), (90, 866566), (122, 639270), (180, 433283), (183, 426180), (244, 319635), (305, 255708), (366, 213090), (549, 142060), (610, 127854), (732, 106545), (915, 85236), (1098, 71030), (1220, 63927), (1830, 42618), (2196, 35515), (2745, 28412), (3660, 21309), (5490, 14206), (7103, 10980)]