28373156

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^2\times {\mathrm{401}}^1$

素因数の和:457

約数の個数: 54

約数和(自身を含む): 61111638

約数和(自身を除く): 32738482

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 49, 76, 98, 133, 196, 266, 361, 401, 532, 722, 802, 931, 1444, 1604, 1862, 2527, 2807, 3724, 5054, 5614, 7619, 10108, 11228, 15238, 17689, 19649, 30476, 35378, 39298, 53333, 70756, 78596, 106666, 144761, 213332, 289522, 373331, 579044, 746662, 1013327, 1493324, 2026654, 4053308, 7093289, 14186578, 28373156]

約数ペア:

[(1, 28373156), (2, 14186578), (4, 7093289), (7, 4053308), (14, 2026654), (19, 1493324), (28, 1013327), (38, 746662), (49, 579044), (76, 373331), (98, 289522), (133, 213332), (196, 144761), (266, 106666), (361, 78596), (401, 70756), (532, 53333), (722, 39298), (802, 35378), (931, 30476), (1444, 19649), (1604, 17689), (1862, 15238), (2527, 11228), (2807, 10108), (3724, 7619), (5054, 5614)]