90406540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{563}}^1$

素因数の和:647

約数の個数: 96

約数和(自身を含む): 230436864

約数和(自身を除く): 140030324

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, 518, 563, 620, 740, 868, 1036, 1085, 1126, 1147, 1295, 2170, 2252, 2294, 2590, 2815, 3941, 4340, 4588, 5180, 5630, 5735, 7882, 8029, 11260, 11470, 15764, 16058, 17453, 19705, 20831, 22940, 32116, 34906, 39410, 40145, 41662, 69812, 78820, 80290, 83324, 87265, 104155, 122171, 145817, 160580, 174530, 208310, 244342, 291634, 349060, 416620, 488684, 583268, 610855, 645761, 729085, 1221710, 1291522, 1458170, 2443420, 2583044, 2916340, 3228805, 4520327, 6457610, 9040654, 12915220, 18081308, 22601635, 45203270, 90406540]

約数ペア:

[(1, 90406540), (2, 45203270), (4, 22601635), (5, 18081308), (7, 12915220), (10, 9040654), (14, 6457610), (20, 4520327), (28, 3228805), (31, 2916340), (35, 2583044), (37, 2443420), (62, 1458170), (70, 1291522), (74, 1221710), (124, 729085), (140, 645761), (148, 610855), (155, 583268), (185, 488684), (217, 416620), (259, 349060), (310, 291634), (370, 244342), (434, 208310), (518, 174530), (563, 160580), (620, 145817), (740, 122171), (868, 104155), (1036, 87265), (1085, 83324), (1126, 80290), (1147, 78820), (1295, 69812), (2170, 41662), (2252, 40145), (2294, 39410), (2590, 34906), (2815, 32116), (3941, 22940), (4340, 20831), (4588, 19705), (5180, 17453), (5630, 16058), (5735, 15764), (7882, 11470), (8029, 11260)]