718804580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{227}}^1\times {\mathrm{641}}^1$

素因数の和:909

約数の個数: 96

約数和(自身を含む): 1721381760

約数和(自身を除く): 1002577180

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 227, 247, 260, 380, 454, 494, 641, 908, 988, 1135, 1235, 1282, 2270, 2470, 2564, 2951, 3205, 4313, 4540, 4940, 5902, 6410, 8333, 8626, 11804, 12179, 12820, 14755, 16666, 17252, 21565, 24358, 29510, 33332, 41665, 43130, 48716, 56069, 59020, 60895, 83330, 86260, 112138, 121790, 145507, 158327, 166660, 224276, 243580, 280345, 291014, 316654, 560690, 582028, 633308, 727535, 791635, 1121380, 1455070, 1583270, 1891591, 2764633, 2910140, 3166540, 3783182, 5529266, 7566364, 9457955, 11058532, 13823165, 18915910, 27646330, 35940229, 37831820, 55292660, 71880458, 143760916, 179701145, 359402290, 718804580]

約数ペア:

[(1, 718804580), (2, 359402290), (4, 179701145), (5, 143760916), (10, 71880458), (13, 55292660), (19, 37831820), (20, 35940229), (26, 27646330), (38, 18915910), (52, 13823165), (65, 11058532), (76, 9457955), (95, 7566364), (130, 5529266), (190, 3783182), (227, 3166540), (247, 2910140), (260, 2764633), (380, 1891591), (454, 1583270), (494, 1455070), (641, 1121380), (908, 791635), (988, 727535), (1135, 633308), (1235, 582028), (1282, 560690), (2270, 316654), (2470, 291014), (2564, 280345), (2951, 243580), (3205, 224276), (4313, 166660), (4540, 158327), (4940, 145507), (5902, 121790), (6410, 112138), (8333, 86260), (8626, 83330), (11804, 60895), (12179, 59020), (12820, 56069), (14755, 48716), (16666, 43130), (17252, 41665), (21565, 33332), (24358, 29510)]