289370380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{3083}}^1$

素因数の和:3143

約数の個数: 72

約数和(自身を含む): 690902352

約数和(自身を除く): 401531972

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 361, 380, 494, 722, 988, 1235, 1444, 1805, 2470, 3083, 3610, 4693, 4940, 6166, 7220, 9386, 12332, 15415, 18772, 23465, 30830, 40079, 46930, 58577, 61660, 80158, 93860, 117154, 160316, 200395, 234308, 292885, 400790, 585770, 761501, 801580, 1112963, 1171540, 1523002, 2225926, 3046004, 3807505, 4451852, 5564815, 7615010, 11129630, 14468519, 15230020, 22259260, 28937038, 57874076, 72342595, 144685190, 289370380]

約数ペア:

[(1, 289370380), (2, 144685190), (4, 72342595), (5, 57874076), (10, 28937038), (13, 22259260), (19, 15230020), (20, 14468519), (26, 11129630), (38, 7615010), (52, 5564815), (65, 4451852), (76, 3807505), (95, 3046004), (130, 2225926), (190, 1523002), (247, 1171540), (260, 1112963), (361, 801580), (380, 761501), (494, 585770), (722, 400790), (988, 292885), (1235, 234308), (1444, 200395), (1805, 160316), (2470, 117154), (3083, 93860), (3610, 80158), (4693, 61660), (4940, 58577), (6166, 46930), (7220, 40079), (9386, 30830), (12332, 23465), (15415, 18772)]