20673824

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{919}}^1$

素因数の和:985

約数の個数: 48

約数和(自身を含む): 44049600

約数和(自身を除く): 23375776

約数列:

[1, 2, 4, 8, 16, 19, 32, 37, 38, 74, 76, 148, 152, 296, 304, 592, 608, 703, 919, 1184, 1406, 1838, 2812, 3676, 5624, 7352, 11248, 14704, 17461, 22496, 29408, 34003, 34922, 68006, 69844, 136012, 139688, 272024, 279376, 544048, 558752, 646057, 1088096, 1292114, 2584228, 5168456, 10336912, 20673824]

約数ペア:

[(1, 20673824), (2, 10336912), (4, 5168456), (8, 2584228), (16, 1292114), (19, 1088096), (32, 646057), (37, 558752), (38, 544048), (74, 279376), (76, 272024), (148, 139688), (152, 136012), (296, 69844), (304, 68006), (592, 34922), (608, 34003), (703, 29408), (919, 22496), (1184, 17461), (1406, 14704), (1838, 11248), (2812, 7352), (3676, 5624)]