20512305740

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{63977}}^1$

素因数の和:64067

約数の個数: 96

約数和(自身を含む): 48754306944

約数和(自身を除く): 28242001204

約数列:

[1, 2, 4, 5, 10, 17, 20, 23, 34, 41, 46, 68, 82, 85, 92, 115, 164, 170, 205, 230, 340, 391, 410, 460, 697, 782, 820, 943, 1394, 1564, 1886, 1955, 2788, 3485, 3772, 3910, 4715, 6970, 7820, 9430, 13940, 16031, 18860, 32062, 63977, 64124, 80155, 127954, 160310, 255908, 319885, 320620, 639770, 1087609, 1279540, 1471471, 2175218, 2623057, 2942942, 4350436, 5246114, 5438045, 5885884, 7357355, 10492228, 10876090, 13115285, 14714710, 21752180, 25015007, 26230570, 29429420, 44591969, 50030014, 52461140, 60330311, 89183938, 100060028, 120660622, 125075035, 178367876, 222959845, 241321244, 250150070, 301651555, 445919690, 500300140, 603303110, 891839380, 1025615287, 1206606220, 2051230574, 4102461148, 5128076435, 10256152870, 20512305740]

約数ペア:

[(1, 20512305740), (2, 10256152870), (4, 5128076435), (5, 4102461148), (10, 2051230574), (17, 1206606220), (20, 1025615287), (23, 891839380), (34, 603303110), (41, 500300140), (46, 445919690), (68, 301651555), (82, 250150070), (85, 241321244), (92, 222959845), (115, 178367876), (164, 125075035), (170, 120660622), (205, 100060028), (230, 89183938), (340, 60330311), (391, 52461140), (410, 50030014), (460, 44591969), (697, 29429420), (782, 26230570), (820, 25015007), (943, 21752180), (1394, 14714710), (1564, 13115285), (1886, 10876090), (1955, 10492228), (2788, 7357355), (3485, 5885884), (3772, 5438045), (3910, 5246114), (4715, 4350436), (6970, 2942942), (7820, 2623057), (9430, 2175218), (13940, 1471471), (16031, 1279540), (18860, 1087609), (32062, 639770), (63977, 320620), (64124, 319885), (80155, 255908), (127954, 160310)]