645595678

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{313}}^1\times {\mathrm{1619}}^1$

素因数の和:1961

約数の個数: 48

約数和(自身を含む): 1217779920

約数和(自身を除く): 572184242

約数列:

[1, 2, 7, 13, 14, 26, 49, 91, 98, 182, 313, 626, 637, 1274, 1619, 2191, 3238, 4069, 4382, 8138, 11333, 15337, 21047, 22666, 28483, 30674, 42094, 56966, 79331, 147329, 158662, 199381, 294658, 398762, 506747, 1013494, 1031303, 2062606, 3547229, 6587711, 7094458, 13175422, 24830603, 46113977, 49661206, 92227954, 322797839, 645595678]

約数ペア:

[(1, 645595678), (2, 322797839), (7, 92227954), (13, 49661206), (14, 46113977), (26, 24830603), (49, 13175422), (91, 7094458), (98, 6587711), (182, 3547229), (313, 2062606), (626, 1031303), (637, 1013494), (1274, 506747), (1619, 398762), (2191, 294658), (3238, 199381), (4069, 158662), (4382, 147329), (8138, 79331), (11333, 56966), (15337, 42094), (21047, 30674), (22666, 28483)]