4891720640

素因数分解:

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

素因数の和:15986

約数の個数: 84

約数和(自身を含む): 12037042728

約数和(自身を除く): 7145322088

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, 961, 992, 1240, 1922, 1984, 2480, 3844, 4805, 4960, 7688, 9610, 9920, 15376, 15907, 19220, 30752, 31814, 38440, 61504, 63628, 76880, 79535, 127256, 153760, 159070, 254512, 307520, 318140, 493117, 509024, 636280, 986234, 1018048, 1272560, 1972468, 2465585, 2545120, 3944936, 4931170, 5090240, 7889872, 9862340, 15286627, 15779744, 19724680, 30573254, 31559488, 39449360, 61146508, 76433135, 78898720, 122293016, 152866270, 157797440, 244586032, 305732540, 489172064, 611465080, 978344128, 1222930160, 2445860320, 4891720640]

約数ペア:

[(1, 4891720640), (2, 2445860320), (4, 1222930160), (5, 978344128), (8, 611465080), (10, 489172064), (16, 305732540), (20, 244586032), (31, 157797440), (32, 152866270), (40, 122293016), (62, 78898720), (64, 76433135), (80, 61146508), (124, 39449360), (155, 31559488), (160, 30573254), (248, 19724680), (310, 15779744), (320, 15286627), (496, 9862340), (620, 7889872), (961, 5090240), (992, 4931170), (1240, 3944936), (1922, 2545120), (1984, 2465585), (2480, 1972468), (3844, 1272560), (4805, 1018048), (4960, 986234), (7688, 636280), (9610, 509024), (9920, 493117), (15376, 318140), (15907, 307520), (19220, 254512), (30752, 159070), (31814, 153760), (38440, 127256), (61504, 79535), (63628, 76880)]