251887974

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1\times {\mathrm{307}}^1$

素因数の和:549

約数の個数: 64

約数和(自身を含む): 555937536

約数和(自身を除く): 304049562

約数列:

[1, 2, 3, 6, 13, 26, 39, 67, 78, 134, 157, 201, 307, 314, 402, 471, 614, 871, 921, 942, 1742, 1842, 2041, 2613, 3991, 4082, 5226, 6123, 7982, 10519, 11973, 12246, 20569, 21038, 23946, 31557, 41138, 48199, 61707, 63114, 96398, 123414, 136747, 144597, 267397, 273494, 289194, 410241, 534794, 626587, 802191, 820482, 1253174, 1604382, 1879761, 3229333, 3759522, 6458666, 9687999, 19375998, 41981329, 83962658, 125943987, 251887974]

約数ペア:

[(1, 251887974), (2, 125943987), (3, 83962658), (6, 41981329), (13, 19375998), (26, 9687999), (39, 6458666), (67, 3759522), (78, 3229333), (134, 1879761), (157, 1604382), (201, 1253174), (307, 820482), (314, 802191), (402, 626587), (471, 534794), (614, 410241), (871, 289194), (921, 273494), (942, 267397), (1742, 144597), (1842, 136747), (2041, 123414), (2613, 96398), (3991, 63114), (4082, 61707), (5226, 48199), (6123, 41138), (7982, 31557), (10519, 23946), (11973, 21038), (12246, 20569)]