81961830

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1013}}^1$

素因数の和:1086

約数の個数: 96

約数和(自身を含む): 227784960

約数和(自身を除く): 145823130

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 29, 30, 31, 45, 58, 62, 87, 90, 93, 145, 155, 174, 186, 261, 279, 290, 310, 435, 465, 522, 558, 870, 899, 930, 1013, 1305, 1395, 1798, 2026, 2610, 2697, 2790, 3039, 4495, 5065, 5394, 6078, 8091, 8990, 9117, 10130, 13485, 15195, 16182, 18234, 26970, 29377, 30390, 31403, 40455, 45585, 58754, 62806, 80910, 88131, 91170, 94209, 146885, 157015, 176262, 188418, 264393, 282627, 293770, 314030, 440655, 471045, 528786, 565254, 881310, 910687, 942090, 1321965, 1413135, 1821374, 2643930, 2732061, 2826270, 4553435, 5464122, 8196183, 9106870, 13660305, 16392366, 27320610, 40980915, 81961830]

約数ペア:

[(1, 81961830), (2, 40980915), (3, 27320610), (5, 16392366), (6, 13660305), (9, 9106870), (10, 8196183), (15, 5464122), (18, 4553435), (29, 2826270), (30, 2732061), (31, 2643930), (45, 1821374), (58, 1413135), (62, 1321965), (87, 942090), (90, 910687), (93, 881310), (145, 565254), (155, 528786), (174, 471045), (186, 440655), (261, 314030), (279, 293770), (290, 282627), (310, 264393), (435, 188418), (465, 176262), (522, 157015), (558, 146885), (870, 94209), (899, 91170), (930, 88131), (1013, 80910), (1305, 62806), (1395, 58754), (1798, 45585), (2026, 40455), (2610, 31403), (2697, 30390), (2790, 29377), (3039, 26970), (4495, 18234), (5065, 16182), (5394, 15195), (6078, 13485), (8091, 10130), (8990, 9117)]