331878140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{21247}}^1$

素因数の和:21338

約数の個数: 48

約数和(自身を含む): 771047424

約数和(自身を除く): 439169284

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 71, 110, 142, 220, 284, 355, 710, 781, 1420, 1562, 3124, 3905, 7810, 15620, 21247, 42494, 84988, 106235, 212470, 233717, 424940, 467434, 934868, 1168585, 1508537, 2337170, 3017074, 4674340, 6034148, 7542685, 15085370, 16593907, 30170740, 33187814, 66375628, 82969535, 165939070, 331878140]

約数ペア:

[(1, 331878140), (2, 165939070), (4, 82969535), (5, 66375628), (10, 33187814), (11, 30170740), (20, 16593907), (22, 15085370), (44, 7542685), (55, 6034148), (71, 4674340), (110, 3017074), (142, 2337170), (220, 1508537), (284, 1168585), (355, 934868), (710, 467434), (781, 424940), (1420, 233717), (1562, 212470), (3124, 106235), (3905, 84988), (7810, 42494), (15620, 21247)]