402077440

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{10133}}^1$

素因数の和:10185

約数の個数: 72

約数和(自身を含む): 994267008

約数和(自身を除く): 592189568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 992, 1240, 1280, 1984, 2480, 3968, 4960, 7936, 9920, 10133, 19840, 20266, 39680, 40532, 50665, 81064, 101330, 162128, 202660, 314123, 324256, 405320, 628246, 648512, 810640, 1256492, 1297024, 1570615, 1621280, 2512984, 2594048, 3141230, 3242560, 5025968, 6282460, 6485120, 10051936, 12564920, 12970240, 20103872, 25129840, 40207744, 50259680, 80415488, 100519360, 201038720, 402077440]

約数ペア:

[(1, 402077440), (2, 201038720), (4, 100519360), (5, 80415488), (8, 50259680), (10, 40207744), (16, 25129840), (20, 20103872), (31, 12970240), (32, 12564920), (40, 10051936), (62, 6485120), (64, 6282460), (80, 5025968), (124, 3242560), (128, 3141230), (155, 2594048), (160, 2512984), (248, 1621280), (256, 1570615), (310, 1297024), (320, 1256492), (496, 810640), (620, 648512), (640, 628246), (992, 405320), (1240, 324256), (1280, 314123), (1984, 202660), (2480, 162128), (3968, 101330), (4960, 81064), (7936, 50665), (9920, 40532), (10133, 39680), (19840, 20266)]