402875320

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{281}}^1\times {\mathrm{491}}^1$

素因数の和:856

約数の個数: 64

約数和(自身を含む): 924035040

約数和(自身を除く): 521159720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 281, 292, 365, 491, 562, 584, 730, 982, 1124, 1405, 1460, 1964, 2248, 2455, 2810, 2920, 3928, 4910, 5620, 9820, 11240, 19640, 20513, 35843, 41026, 71686, 82052, 102565, 137971, 143372, 164104, 179215, 205130, 275942, 286744, 358430, 410260, 551884, 689855, 716860, 820520, 1103768, 1379710, 1433720, 2759420, 5518840, 10071883, 20143766, 40287532, 50359415, 80575064, 100718830, 201437660, 402875320]

約数ペア:

[(1, 402875320), (2, 201437660), (4, 100718830), (5, 80575064), (8, 50359415), (10, 40287532), (20, 20143766), (40, 10071883), (73, 5518840), (146, 2759420), (281, 1433720), (292, 1379710), (365, 1103768), (491, 820520), (562, 716860), (584, 689855), (730, 551884), (982, 410260), (1124, 358430), (1405, 286744), (1460, 275942), (1964, 205130), (2248, 179215), (2455, 164104), (2810, 143372), (2920, 137971), (3928, 102565), (4910, 82052), (5620, 71686), (9820, 41026), (11240, 35843), (19640, 20513)]