30389720

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1\times {\mathrm{163}}^1$

素因数の和:312

約数の個数: 64

約数和(自身を含む): 70848000

約数和(自身を除く): 40458280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 79, 118, 158, 163, 236, 295, 316, 326, 395, 472, 590, 632, 652, 790, 815, 1180, 1304, 1580, 1630, 2360, 3160, 3260, 4661, 6520, 9322, 9617, 12877, 18644, 19234, 23305, 25754, 37288, 38468, 46610, 48085, 51508, 64385, 76936, 93220, 96170, 103016, 128770, 186440, 192340, 257540, 384680, 515080, 759743, 1519486, 3038972, 3798715, 6077944, 7597430, 15194860, 30389720]

約数ペア:

[(1, 30389720), (2, 15194860), (4, 7597430), (5, 6077944), (8, 3798715), (10, 3038972), (20, 1519486), (40, 759743), (59, 515080), (79, 384680), (118, 257540), (158, 192340), (163, 186440), (236, 128770), (295, 103016), (316, 96170), (326, 93220), (395, 76936), (472, 64385), (590, 51508), (632, 48085), (652, 46610), (790, 38468), (815, 37288), (1180, 25754), (1304, 23305), (1580, 19234), (1630, 18644), (2360, 12877), (3160, 9617), (3260, 9322), (4661, 6520)]