91712720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{1171}}^1$

素因数の和:1284

約数の個数: 80

約数和(自身を含む): 235431360

約数和(自身を除く): 143718640

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 89, 110, 176, 178, 220, 356, 440, 445, 712, 880, 890, 979, 1171, 1424, 1780, 1958, 2342, 3560, 3916, 4684, 4895, 5855, 7120, 7832, 9368, 9790, 11710, 12881, 15664, 18736, 19580, 23420, 25762, 39160, 46840, 51524, 64405, 78320, 93680, 103048, 104219, 128810, 206096, 208438, 257620, 416876, 515240, 521095, 833752, 1030480, 1042190, 1146409, 1667504, 2084380, 2292818, 4168760, 4585636, 5732045, 8337520, 9171272, 11464090, 18342544, 22928180, 45856360, 91712720]

約数ペア:

[(1, 91712720), (2, 45856360), (4, 22928180), (5, 18342544), (8, 11464090), (10, 9171272), (11, 8337520), (16, 5732045), (20, 4585636), (22, 4168760), (40, 2292818), (44, 2084380), (55, 1667504), (80, 1146409), (88, 1042190), (89, 1030480), (110, 833752), (176, 521095), (178, 515240), (220, 416876), (356, 257620), (440, 208438), (445, 206096), (712, 128810), (880, 104219), (890, 103048), (979, 93680), (1171, 78320), (1424, 64405), (1780, 51524), (1958, 46840), (2342, 39160), (3560, 25762), (3916, 23420), (4684, 19580), (4895, 18736), (5855, 15664), (7120, 12881), (7832, 11710), (9368, 9790)]