81113360

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{32707}}^1$

素因数の和:32751

約数の個数: 40

約数和(自身を含む): 194678016

約数和(自身を除く): 113564656

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 32707, 65414, 130828, 163535, 261656, 327070, 523312, 654140, 1013917, 1308280, 2027834, 2616560, 4055668, 5069585, 8111336, 10139170, 16222672, 20278340, 40556680, 81113360]

約数ペア:

[(1, 81113360), (2, 40556680), (4, 20278340), (5, 16222672), (8, 10139170), (10, 8111336), (16, 5069585), (20, 4055668), (31, 2616560), (40, 2027834), (62, 1308280), (80, 1013917), (124, 654140), (155, 523312), (248, 327070), (310, 261656), (496, 163535), (620, 130828), (1240, 65414), (2480, 32707)]