18916804595

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{23}}^2\times {\mathrm{101}}^1\times {\mathrm{419}}^1$

素因数の和:597

約数の個数: 72

約数和(自身を含む): 26012190960

約数和(自身を除く): 7095386365

約数列:

[1, 5, 13, 23, 65, 101, 115, 169, 299, 419, 505, 529, 845, 1313, 1495, 2095, 2323, 2645, 3887, 5447, 6565, 6877, 9637, 11615, 17069, 19435, 27235, 30199, 34385, 42319, 48185, 53429, 70811, 85345, 89401, 125281, 150995, 211595, 221651, 267145, 354055, 392587, 447005, 550147, 626405, 694577, 973337, 1108255, 1628653, 1962935, 2750735, 2881463, 3472885, 4866685, 7151911, 8143265, 9029501, 12653381, 14407315, 22386751, 35759555, 37459019, 45147505, 63266905, 111933755, 164493953, 187295095, 291027763, 822469765, 1455138815, 3783360919, 18916804595]

約数ペア:

[(1, 18916804595), (5, 3783360919), (13, 1455138815), (23, 822469765), (65, 291027763), (101, 187295095), (115, 164493953), (169, 111933755), (299, 63266905), (419, 45147505), (505, 37459019), (529, 35759555), (845, 22386751), (1313, 14407315), (1495, 12653381), (2095, 9029501), (2323, 8143265), (2645, 7151911), (3887, 4866685), (5447, 3472885), (6565, 2881463), (6877, 2750735), (9637, 1962935), (11615, 1628653), (17069, 1108255), (19435, 973337), (27235, 694577), (30199, 626405), (34385, 550147), (42319, 447005), (48185, 392587), (53429, 354055), (70811, 267145), (85345, 221651), (89401, 211595), (125281, 150995)]