90508140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{8243}}^1$

素因数の和:8319

約数の個数: 72

約数和(自身を含む): 279075888

約数和(自身を除く): 188567748

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, 8243, 10980, 16486, 24729, 32972, 41215, 49458, 74187, 82430, 98916, 123645, 148374, 164860, 247290, 296748, 370935, 494580, 502823, 741870, 1005646, 1483740, 1508469, 2011292, 2514115, 3016938, 4525407, 5028230, 6033876, 7542345, 9050814, 10056460, 15084690, 18101628, 22627035, 30169380, 45254070, 90508140]

約数ペア:

[(1, 90508140), (2, 45254070), (3, 30169380), (4, 22627035), (5, 18101628), (6, 15084690), (9, 10056460), (10, 9050814), (12, 7542345), (15, 6033876), (18, 5028230), (20, 4525407), (30, 3016938), (36, 2514115), (45, 2011292), (60, 1508469), (61, 1483740), (90, 1005646), (122, 741870), (180, 502823), (183, 494580), (244, 370935), (305, 296748), (366, 247290), (549, 164860), (610, 148374), (732, 123645), (915, 98916), (1098, 82430), (1220, 74187), (1830, 49458), (2196, 41215), (2745, 32972), (3660, 24729), (5490, 16486), (8243, 10980)]