20125484

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{421}}^1$

素因数の和:498

約数の個数: 48

約数和(自身を含む): 40410720

約数和(自身を除く): 20285236

約数列:

[1, 2, 4, 17, 19, 34, 37, 38, 68, 74, 76, 148, 323, 421, 629, 646, 703, 842, 1258, 1292, 1406, 1684, 2516, 2812, 7157, 7999, 11951, 14314, 15577, 15998, 23902, 28628, 31154, 31996, 47804, 62308, 135983, 264809, 271966, 295963, 529618, 543932, 591926, 1059236, 1183852, 5031371, 10062742, 20125484]

約数ペア:

[(1, 20125484), (2, 10062742), (4, 5031371), (17, 1183852), (19, 1059236), (34, 591926), (37, 543932), (38, 529618), (68, 295963), (74, 271966), (76, 264809), (148, 135983), (323, 62308), (421, 47804), (629, 31996), (646, 31154), (703, 28628), (842, 23902), (1258, 15998), (1292, 15577), (1406, 14314), (1684, 11951), (2516, 7999), (2812, 7157)]