668833659

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1\times {\mathrm{229}}^1$

素因数の和:461

約数の個数: 64

約数和(自身を含む): 1098921600

約数和(自身を除く): 430087941

約数列:

[1, 3, 9, 13, 27, 39, 53, 117, 157, 159, 229, 351, 471, 477, 687, 689, 1413, 1431, 2041, 2061, 2067, 2977, 4239, 6123, 6183, 6201, 8321, 8931, 12137, 18369, 18603, 24963, 26793, 35953, 36411, 55107, 74889, 80379, 107859, 108173, 109233, 157781, 224667, 323577, 324519, 327699, 467389, 473343, 970731, 973557, 1402167, 1420029, 1905509, 2920671, 4206501, 4260087, 5716527, 12619503, 17149581, 24771617, 51448743, 74314851, 222944553, 668833659]

約数ペア:

[(1, 668833659), (3, 222944553), (9, 74314851), (13, 51448743), (27, 24771617), (39, 17149581), (53, 12619503), (117, 5716527), (157, 4260087), (159, 4206501), (229, 2920671), (351, 1905509), (471, 1420029), (477, 1402167), (687, 973557), (689, 970731), (1413, 473343), (1431, 467389), (2041, 327699), (2061, 324519), (2067, 323577), (2977, 224667), (4239, 157781), (6123, 109233), (6183, 108173), (6201, 107859), (8321, 80379), (8931, 74889), (12137, 55107), (18369, 36411), (18603, 35953), (24963, 26793)]