157028578

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1$

素因数の和:335

約数の個数: 64

約数和(自身を含む): 296755200

約数和(自身を除く): 139726622

約数列:

[1, 2, 7, 14, 19, 31, 38, 62, 133, 137, 139, 217, 266, 274, 278, 434, 589, 959, 973, 1178, 1918, 1946, 2603, 2641, 4123, 4247, 4309, 5206, 5282, 8246, 8494, 8618, 18221, 18487, 19043, 29729, 30163, 36442, 36974, 38086, 59458, 60326, 80693, 81871, 133301, 161386, 163742, 266602, 361817, 564851, 573097, 590333, 723634, 1129702, 1146194, 1180666, 2532719, 4132331, 5065438, 8264662, 11216327, 22432654, 78514289, 157028578]

約数ペア:

[(1, 157028578), (2, 78514289), (7, 22432654), (14, 11216327), (19, 8264662), (31, 5065438), (38, 4132331), (62, 2532719), (133, 1180666), (137, 1146194), (139, 1129702), (217, 723634), (266, 590333), (274, 573097), (278, 564851), (434, 361817), (589, 266602), (959, 163742), (973, 161386), (1178, 133301), (1918, 81871), (1946, 80693), (2603, 60326), (2641, 59458), (4123, 38086), (4247, 36974), (4309, 36442), (5206, 30163), (5282, 29729), (8246, 19043), (8494, 18487), (8618, 18221)]