90723980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1$

素因数の和:207

約数の個数: 96

約数和(自身を含む): 208631808

約数和(自身を除く): 117907828

約数列:

[1, 2, 4, 5, 10, 20, 31, 41, 43, 62, 82, 83, 86, 124, 155, 164, 166, 172, 205, 215, 310, 332, 410, 415, 430, 620, 820, 830, 860, 1271, 1333, 1660, 1763, 2542, 2573, 2666, 3403, 3526, 3569, 5084, 5146, 5332, 6355, 6665, 6806, 7052, 7138, 8815, 10292, 12710, 12865, 13330, 13612, 14276, 17015, 17630, 17845, 25420, 25730, 26660, 34030, 35260, 35690, 51460, 54653, 68060, 71380, 105493, 109306, 110639, 146329, 210986, 218612, 221278, 273265, 292658, 421972, 442556, 527465, 546530, 553195, 585316, 731645, 1054930, 1093060, 1106390, 1463290, 2109860, 2212780, 2926580, 4536199, 9072398, 18144796, 22680995, 45361990, 90723980]

約数ペア:

[(1, 90723980), (2, 45361990), (4, 22680995), (5, 18144796), (10, 9072398), (20, 4536199), (31, 2926580), (41, 2212780), (43, 2109860), (62, 1463290), (82, 1106390), (83, 1093060), (86, 1054930), (124, 731645), (155, 585316), (164, 553195), (166, 546530), (172, 527465), (205, 442556), (215, 421972), (310, 292658), (332, 273265), (410, 221278), (415, 218612), (430, 210986), (620, 146329), (820, 110639), (830, 109306), (860, 105493), (1271, 71380), (1333, 68060), (1660, 54653), (1763, 51460), (2542, 35690), (2573, 35260), (2666, 34030), (3403, 26660), (3526, 25730), (3569, 25420), (5084, 17845), (5146, 17630), (5332, 17015), (6355, 14276), (6665, 13612), (6806, 13330), (7052, 12865), (7138, 12710), (8815, 10292)]