668889208

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{4789}}^1$

素因数の和:4904

約数の個数: 64

約数和(自身を含む): 1448496000

約数和(自身を除く): 779606792

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 79, 104, 136, 158, 221, 316, 442, 632, 884, 1027, 1343, 1768, 2054, 2686, 4108, 4789, 5372, 8216, 9578, 10744, 17459, 19156, 34918, 38312, 62257, 69836, 81413, 124514, 139672, 162826, 249028, 325652, 378331, 498056, 651304, 756662, 1058369, 1513324, 2116738, 3026648, 4233476, 4918303, 6431627, 8466952, 9836606, 12863254, 19673212, 25726508, 39346424, 51453016, 83611151, 167222302, 334444604, 668889208]

約数ペア:

[(1, 668889208), (2, 334444604), (4, 167222302), (8, 83611151), (13, 51453016), (17, 39346424), (26, 25726508), (34, 19673212), (52, 12863254), (68, 9836606), (79, 8466952), (104, 6431627), (136, 4918303), (158, 4233476), (221, 3026648), (316, 2116738), (442, 1513324), (632, 1058369), (884, 756662), (1027, 651304), (1343, 498056), (1768, 378331), (2054, 325652), (2686, 249028), (4108, 162826), (4789, 139672), (5372, 124514), (8216, 81413), (9578, 69836), (10744, 62257), (17459, 38312), (19156, 34918)]