339941875

素因数分解:

$5^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:222

約数の個数: 80

約数和(自身を含む): 538827520

約数和(自身を除く): 198885645

約数列:

[1, 5, 7, 13, 25, 35, 43, 65, 91, 125, 139, 175, 215, 301, 325, 455, 559, 625, 695, 875, 973, 1075, 1505, 1625, 1807, 2275, 2795, 3475, 3913, 4375, 4865, 5375, 5977, 7525, 8125, 9035, 11375, 12649, 13975, 17375, 19565, 24325, 26875, 29885, 37625, 41839, 45175, 56875, 63245, 69875, 77701, 86875, 97825, 121625, 149425, 188125, 209195, 225875, 316225, 349375, 388505, 489125, 543907, 608125, 747125, 1045975, 1129375, 1581125, 1942525, 2445625, 2719535, 3735625, 5229875, 7905625, 9712625, 13597675, 26149375, 48563125, 67988375, 339941875]

約数ペア:

[(1, 339941875), (5, 67988375), (7, 48563125), (13, 26149375), (25, 13597675), (35, 9712625), (43, 7905625), (65, 5229875), (91, 3735625), (125, 2719535), (139, 2445625), (175, 1942525), (215, 1581125), (301, 1129375), (325, 1045975), (455, 747125), (559, 608125), (625, 543907), (695, 489125), (875, 388505), (973, 349375), (1075, 316225), (1505, 225875), (1625, 209195), (1807, 188125), (2275, 149425), (2795, 121625), (3475, 97825), (3913, 86875), (4375, 77701), (4865, 69875), (5375, 63245), (5977, 56875), (7525, 45175), (8125, 41839), (9035, 37625), (11375, 29885), (12649, 26875), (13975, 24325), (17375, 19565)]