398810420

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1\times {\mathrm{3617}}^1$

素因数の和:3812

約数の個数: 48

約数和(自身を含む): 866149200

約数和(自身を除く): 467338780

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 149, 185, 298, 370, 596, 740, 745, 1490, 2980, 3617, 5513, 7234, 11026, 14468, 18085, 22052, 27565, 36170, 55130, 72340, 110260, 133829, 267658, 535316, 538933, 669145, 1077866, 1338290, 2155732, 2676580, 2694665, 5389330, 10778660, 19940521, 39881042, 79762084, 99702605, 199405210, 398810420]

約数ペア:

[(1, 398810420), (2, 199405210), (4, 99702605), (5, 79762084), (10, 39881042), (20, 19940521), (37, 10778660), (74, 5389330), (148, 2694665), (149, 2676580), (185, 2155732), (298, 1338290), (370, 1077866), (596, 669145), (740, 538933), (745, 535316), (1490, 267658), (2980, 133829), (3617, 110260), (5513, 72340), (7234, 55130), (11026, 36170), (14468, 27565), (18085, 22052)]