20565887984

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1\times {\mathrm{5923}}^1$

素因数の和:6118

約数の個数: 80

約数和(自身を含む): 41958981120

約数和(自身を除く): 21393093136

約数列:

[1, 2, 4, 8, 16, 41, 67, 79, 82, 134, 158, 164, 268, 316, 328, 536, 632, 656, 1072, 1264, 2747, 3239, 5293, 5494, 5923, 6478, 10586, 10988, 11846, 12956, 21172, 21976, 23692, 25912, 42344, 43952, 47384, 51824, 84688, 94768, 217013, 242843, 396841, 434026, 467917, 485686, 793682, 868052, 935834, 971372, 1587364, 1736104, 1871668, 1942744, 3174728, 3472208, 3743336, 3885488, 6349456, 7486672, 16270481, 19184597, 31350439, 32540962, 38369194, 62700878, 65081924, 76738388, 125401756, 130163848, 153476776, 250803512, 260327696, 306953552, 501607024, 1285367999, 2570735998, 5141471996, 10282943992, 20565887984]

約数ペア:

[(1, 20565887984), (2, 10282943992), (4, 5141471996), (8, 2570735998), (16, 1285367999), (41, 501607024), (67, 306953552), (79, 260327696), (82, 250803512), (134, 153476776), (158, 130163848), (164, 125401756), (268, 76738388), (316, 65081924), (328, 62700878), (536, 38369194), (632, 32540962), (656, 31350439), (1072, 19184597), (1264, 16270481), (2747, 7486672), (3239, 6349456), (5293, 3885488), (5494, 3743336), (5923, 3472208), (6478, 3174728), (10586, 1942744), (10988, 1871668), (11846, 1736104), (12956, 1587364), (21172, 971372), (21976, 935834), (23692, 868052), (25912, 793682), (42344, 485686), (43952, 467917), (47384, 434026), (51824, 396841), (84688, 242843), (94768, 217013)]