201989840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{1163}}^1$

素因数の和:1356

約数の個数: 80

約数和(自身を含む): 509217408

約数和(自身を除く): 307227568

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 167, 208, 260, 334, 520, 668, 835, 1040, 1163, 1336, 1670, 2171, 2326, 2672, 3340, 4342, 4652, 5815, 6680, 8684, 9304, 10855, 11630, 13360, 15119, 17368, 18608, 21710, 23260, 30238, 34736, 43420, 46520, 60476, 75595, 86840, 93040, 120952, 151190, 173680, 194221, 241904, 302380, 388442, 604760, 776884, 971105, 1209520, 1553768, 1942210, 2524873, 3107536, 3884420, 5049746, 7768840, 10099492, 12624365, 15537680, 20198984, 25248730, 40397968, 50497460, 100994920, 201989840]

約数ペア:

[(1, 201989840), (2, 100994920), (4, 50497460), (5, 40397968), (8, 25248730), (10, 20198984), (13, 15537680), (16, 12624365), (20, 10099492), (26, 7768840), (40, 5049746), (52, 3884420), (65, 3107536), (80, 2524873), (104, 1942210), (130, 1553768), (167, 1209520), (208, 971105), (260, 776884), (334, 604760), (520, 388442), (668, 302380), (835, 241904), (1040, 194221), (1163, 173680), (1336, 151190), (1670, 120952), (2171, 93040), (2326, 86840), (2672, 75595), (3340, 60476), (4342, 46520), (4652, 43420), (5815, 34736), (6680, 30238), (8684, 23260), (9304, 21710), (10855, 18608), (11630, 17368), (13360, 15119)]