251444340

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{199559}}^1$

素因数の和:199581

約数の個数: 72

約数和(自身を含む): 871678080

約数和(自身を除く): 620233740

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 199559, 399118, 598677, 798236, 997795, 1197354, 1396913, 1796031, 1995590, 2394708, 2793826, 2993385, 3592062, 3991180, 4190739, 5587652, 5986770, 6984565, 7184124, 8381478, 8980155, 11973540, 12572217, 13969130, 16762956, 17960310, 20953695, 25144434, 27938260, 35920620, 41907390, 50288868, 62861085, 83814780, 125722170, 251444340]

約数ペア:

[(1, 251444340), (2, 125722170), (3, 83814780), (4, 62861085), (5, 50288868), (6, 41907390), (7, 35920620), (9, 27938260), (10, 25144434), (12, 20953695), (14, 17960310), (15, 16762956), (18, 13969130), (20, 12572217), (21, 11973540), (28, 8980155), (30, 8381478), (35, 7184124), (36, 6984565), (42, 5986770), (45, 5587652), (60, 4190739), (63, 3991180), (70, 3592062), (84, 2993385), (90, 2793826), (105, 2394708), (126, 1995590), (140, 1796031), (180, 1396913), (210, 1197354), (252, 997795), (315, 798236), (420, 598677), (630, 399118), (1260, 199559)]