261766908

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{313}}^1\times {\mathrm{1787}}^1$

素因数の和:2123

約数の個数: 72

約数和(自身を含む): 715264368

約数和(自身を除く): 453497460

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 313, 468, 626, 939, 1252, 1787, 1878, 2817, 3574, 3756, 4069, 5361, 5634, 7148, 8138, 10722, 11268, 12207, 16083, 16276, 21444, 23231, 24414, 32166, 36621, 46462, 48828, 64332, 69693, 73242, 92924, 139386, 146484, 209079, 278772, 418158, 559331, 836316, 1118662, 1677993, 2237324, 3355986, 5033979, 6711972, 7271303, 10067958, 14542606, 20135916, 21813909, 29085212, 43627818, 65441727, 87255636, 130883454, 261766908]

約数ペア:

[(1, 261766908), (2, 130883454), (3, 87255636), (4, 65441727), (6, 43627818), (9, 29085212), (12, 21813909), (13, 20135916), (18, 14542606), (26, 10067958), (36, 7271303), (39, 6711972), (52, 5033979), (78, 3355986), (117, 2237324), (156, 1677993), (234, 1118662), (313, 836316), (468, 559331), (626, 418158), (939, 278772), (1252, 209079), (1787, 146484), (1878, 139386), (2817, 92924), (3574, 73242), (3756, 69693), (4069, 64332), (5361, 48828), (5634, 46462), (7148, 36621), (8138, 32166), (10722, 24414), (11268, 23231), (12207, 21444), (16083, 16276)]