20121247128

素因数分解:

$2^3\times 3^1\times {\mathrm{31}}^1\times {\mathrm{2129}}^1\times {\mathrm{12703}}^1$

素因数の和:14872

約数の個数: 64

約数和(自身を含む): 51954278400

約数和(自身を除く): 31833031272

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 31, 62, 93, 124, 186, 248, 372, 744, 2129, 4258, 6387, 8516, 12703, 12774, 17032, 25406, 25548, 38109, 50812, 51096, 65999, 76218, 101624, 131998, 152436, 197997, 263996, 304872, 393793, 395994, 527992, 787586, 791988, 1181379, 1575172, 1583976, 2362758, 3150344, 4725516, 9451032, 27044687, 54089374, 81134061, 108178748, 162268122, 216357496, 324536244, 649072488, 838385297, 1676770594, 2515155891, 3353541188, 5030311782, 6707082376, 10060623564, 20121247128]

約数ペア:

[(1, 20121247128), (2, 10060623564), (3, 6707082376), (4, 5030311782), (6, 3353541188), (8, 2515155891), (12, 1676770594), (24, 838385297), (31, 649072488), (62, 324536244), (93, 216357496), (124, 162268122), (186, 108178748), (248, 81134061), (372, 54089374), (744, 27044687), (2129, 9451032), (4258, 4725516), (6387, 3150344), (8516, 2362758), (12703, 1583976), (12774, 1575172), (17032, 1181379), (25406, 791988), (25548, 787586), (38109, 527992), (50812, 395994), (51096, 393793), (65999, 304872), (76218, 263996), (101624, 197997), (131998, 152436)]