20184801845

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{257}}^1$

素因数の和:459

約数の個数: 96

約数和(自身を含む): 28822112928

約数和(自身を除く): 8637311083

約数列:

[1, 5, 13, 17, 37, 65, 85, 113, 185, 221, 257, 289, 481, 565, 629, 1105, 1285, 1445, 1469, 1921, 2405, 3145, 3341, 3757, 4181, 4369, 7345, 8177, 9509, 9605, 10693, 16705, 18785, 20905, 21845, 24973, 29041, 32657, 40885, 47545, 53465, 54353, 56797, 71077, 74273, 123617, 124865, 139009, 145205, 161653, 163285, 271765, 283985, 355385, 371365, 377533, 424541, 493697, 618085, 695045, 808265, 924001, 965549, 1074517, 1208309, 1887665, 2101489, 2122705, 2468485, 2748101, 4620005, 4827745, 5372585, 6041545, 6418061, 8392849, 10507445, 13740505, 13968721, 15708017, 18266789, 32090305, 35725313, 41964245, 69843605, 78540085, 91333945, 109107037, 178626565, 237468257, 310535413, 545535185, 1187341285, 1552677065, 4036960369, 20184801845]

約数ペア:

[(1, 20184801845), (5, 4036960369), (13, 1552677065), (17, 1187341285), (37, 545535185), (65, 310535413), (85, 237468257), (113, 178626565), (185, 109107037), (221, 91333945), (257, 78540085), (289, 69843605), (481, 41964245), (565, 35725313), (629, 32090305), (1105, 18266789), (1285, 15708017), (1445, 13968721), (1469, 13740505), (1921, 10507445), (2405, 8392849), (3145, 6418061), (3341, 6041545), (3757, 5372585), (4181, 4827745), (4369, 4620005), (7345, 2748101), (8177, 2468485), (9509, 2122705), (9605, 2101489), (10693, 1887665), (16705, 1208309), (18785, 1074517), (20905, 965549), (21845, 924001), (24973, 808265), (29041, 695045), (32657, 618085), (40885, 493697), (47545, 424541), (53465, 377533), (54353, 371365), (56797, 355385), (71077, 283985), (74273, 271765), (123617, 163285), (124865, 161653), (139009, 145205)]