157797440

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{15907}}^1$

素因数の和:15955

約数の個数: 56

約数和(自身を含む): 387900672

約数和(自身を除く): 230103232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 1240, 1984, 2480, 4960, 9920, 15907, 31814, 63628, 79535, 127256, 159070, 254512, 318140, 493117, 509024, 636280, 986234, 1018048, 1272560, 1972468, 2465585, 2545120, 3944936, 4931170, 5090240, 7889872, 9862340, 15779744, 19724680, 31559488, 39449360, 78898720, 157797440]

約数ペア:

[(1, 157797440), (2, 78898720), (4, 39449360), (5, 31559488), (8, 19724680), (10, 15779744), (16, 9862340), (20, 7889872), (31, 5090240), (32, 4931170), (40, 3944936), (62, 2545120), (64, 2465585), (80, 1972468), (124, 1272560), (155, 1018048), (160, 986234), (248, 636280), (310, 509024), (320, 493117), (496, 318140), (620, 254512), (992, 159070), (1240, 127256), (1984, 79535), (2480, 63628), (4960, 31814), (9920, 15907)]