20195320

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^2\times {\mathrm{1747}}^1$

素因数の和:1792

約数の個数: 48

約数和(自身を含む): 48297240

約数和(自身を除く): 28101920

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 289, 340, 578, 680, 1156, 1445, 1747, 2312, 2890, 3494, 5780, 6988, 8735, 11560, 13976, 17470, 29699, 34940, 59398, 69880, 118796, 148495, 237592, 296990, 504883, 593980, 1009766, 1187960, 2019532, 2524415, 4039064, 5048830, 10097660, 20195320]

約数ペア:

[(1, 20195320), (2, 10097660), (4, 5048830), (5, 4039064), (8, 2524415), (10, 2019532), (17, 1187960), (20, 1009766), (34, 593980), (40, 504883), (68, 296990), (85, 237592), (136, 148495), (170, 118796), (289, 69880), (340, 59398), (578, 34940), (680, 29699), (1156, 17470), (1445, 13976), (1747, 11560), (2312, 8735), (2890, 6988), (3494, 5780)]