38981540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{607}}^1$

素因数の和:661

約数の個数: 72

約数和(自身を含む): 93461760

約数和(自身を除く): 54480220

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 169, 190, 247, 260, 338, 380, 494, 607, 676, 845, 988, 1214, 1235, 1690, 2428, 2470, 3035, 3211, 3380, 4940, 6070, 6422, 7891, 11533, 12140, 12844, 15782, 16055, 23066, 31564, 32110, 39455, 46132, 57665, 64220, 78910, 102583, 115330, 149929, 157820, 205166, 230660, 299858, 410332, 512915, 599716, 749645, 1025830, 1499290, 1949077, 2051660, 2998580, 3898154, 7796308, 9745385, 19490770, 38981540]

約数ペア:

[(1, 38981540), (2, 19490770), (4, 9745385), (5, 7796308), (10, 3898154), (13, 2998580), (19, 2051660), (20, 1949077), (26, 1499290), (38, 1025830), (52, 749645), (65, 599716), (76, 512915), (95, 410332), (130, 299858), (169, 230660), (190, 205166), (247, 157820), (260, 149929), (338, 115330), (380, 102583), (494, 78910), (607, 64220), (676, 57665), (845, 46132), (988, 39455), (1214, 32110), (1235, 31564), (1690, 23066), (2428, 16055), (2470, 15782), (3035, 12844), (3211, 12140), (3380, 11533), (4940, 7891), (6070, 6422)]