211348540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{107}}^2$

素因数の和:307

約数の個数: 72

約数和(自身を含む): 489277152

約数和(自身を除く): 277928612

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 71, 107, 130, 142, 214, 260, 284, 355, 428, 535, 710, 923, 1070, 1391, 1420, 1846, 2140, 2782, 3692, 4615, 5564, 6955, 7597, 9230, 11449, 13910, 15194, 18460, 22898, 27820, 30388, 37985, 45796, 57245, 75970, 98761, 114490, 148837, 151940, 197522, 228980, 297674, 395044, 493805, 595348, 744185, 812879, 987610, 1488370, 1625758, 1975220, 2976740, 3251516, 4064395, 8128790, 10567427, 16257580, 21134854, 42269708, 52837135, 105674270, 211348540]

約数ペア:

[(1, 211348540), (2, 105674270), (4, 52837135), (5, 42269708), (10, 21134854), (13, 16257580), (20, 10567427), (26, 8128790), (52, 4064395), (65, 3251516), (71, 2976740), (107, 1975220), (130, 1625758), (142, 1488370), (214, 987610), (260, 812879), (284, 744185), (355, 595348), (428, 493805), (535, 395044), (710, 297674), (923, 228980), (1070, 197522), (1391, 151940), (1420, 148837), (1846, 114490), (2140, 98761), (2782, 75970), (3692, 57245), (4615, 45796), (5564, 37985), (6955, 30388), (7597, 27820), (9230, 22898), (11449, 18460), (13910, 15194)]