641688216

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{108247}}^1$

素因数の和:108288

約数の個数: 64

約数和(自身を含む): 1818566400

約数和(自身を除く): 1176878184

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 19, 24, 26, 38, 39, 52, 57, 76, 78, 104, 114, 152, 156, 228, 247, 312, 456, 494, 741, 988, 1482, 1976, 2964, 5928, 108247, 216494, 324741, 432988, 649482, 865976, 1298964, 1407211, 2056693, 2597928, 2814422, 4113386, 4221633, 5628844, 6170079, 8226772, 8443266, 11257688, 12340158, 16453544, 16886532, 24680316, 26737009, 33773064, 49360632, 53474018, 80211027, 106948036, 160422054, 213896072, 320844108, 641688216]

約数ペア:

[(1, 641688216), (2, 320844108), (3, 213896072), (4, 160422054), (6, 106948036), (8, 80211027), (12, 53474018), (13, 49360632), (19, 33773064), (24, 26737009), (26, 24680316), (38, 16886532), (39, 16453544), (52, 12340158), (57, 11257688), (76, 8443266), (78, 8226772), (104, 6170079), (114, 5628844), (152, 4221633), (156, 4113386), (228, 2814422), (247, 2597928), (312, 2056693), (456, 1407211), (494, 1298964), (741, 865976), (988, 649482), (1482, 432988), (1976, 324741), (2964, 216494), (5928, 108247)]