81735220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{509}}^1$

素因数の和:593

約数の個数: 96

約数和(自身を含む): 208373760

約数和(自身を除く): 126638540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 37, 62, 70, 74, 124, 140, 148, 155, 185, 217, 259, 310, 370, 434, 509, 518, 620, 740, 868, 1018, 1036, 1085, 1147, 1295, 2036, 2170, 2294, 2545, 2590, 3563, 4340, 4588, 5090, 5180, 5735, 7126, 8029, 10180, 11470, 14252, 15779, 16058, 17815, 18833, 22940, 31558, 32116, 35630, 37666, 40145, 63116, 71260, 75332, 78895, 80290, 94165, 110453, 131831, 157790, 160580, 188330, 220906, 263662, 315580, 376660, 441812, 527324, 552265, 583823, 659155, 1104530, 1167646, 1318310, 2209060, 2335292, 2636620, 2919115, 4086761, 5838230, 8173522, 11676460, 16347044, 20433805, 40867610, 81735220]

約数ペア:

[(1, 81735220), (2, 40867610), (4, 20433805), (5, 16347044), (7, 11676460), (10, 8173522), (14, 5838230), (20, 4086761), (28, 2919115), (31, 2636620), (35, 2335292), (37, 2209060), (62, 1318310), (70, 1167646), (74, 1104530), (124, 659155), (140, 583823), (148, 552265), (155, 527324), (185, 441812), (217, 376660), (259, 315580), (310, 263662), (370, 220906), (434, 188330), (509, 160580), (518, 157790), (620, 131831), (740, 110453), (868, 94165), (1018, 80290), (1036, 78895), (1085, 75332), (1147, 71260), (1295, 63116), (2036, 40145), (2170, 37666), (2294, 35630), (2545, 32116), (2590, 31558), (3563, 22940), (4340, 18833), (4588, 17815), (5090, 16058), (5180, 15779), (5735, 14252), (7126, 11470), (8029, 10180)]