90209380

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{1753}}^1$

素因数の和:1876

約数の個数: 48

約数和(自身を含む): 198019584

約数和(自身を除く): 107810204

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 83, 124, 155, 166, 310, 332, 415, 620, 830, 1660, 1753, 2573, 3506, 5146, 7012, 8765, 10292, 12865, 17530, 25730, 35060, 51460, 54343, 108686, 145499, 217372, 271715, 290998, 543430, 581996, 727495, 1086860, 1454990, 2909980, 4510469, 9020938, 18041876, 22552345, 45104690, 90209380]

約数ペア:

[(1, 90209380), (2, 45104690), (4, 22552345), (5, 18041876), (10, 9020938), (20, 4510469), (31, 2909980), (62, 1454990), (83, 1086860), (124, 727495), (155, 581996), (166, 543430), (310, 290998), (332, 271715), (415, 217372), (620, 145499), (830, 108686), (1660, 54343), (1753, 51460), (2573, 35060), (3506, 25730), (5146, 17530), (7012, 12865), (8765, 10292)]