321183125

素因数分解:

$5^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:136

約数の個数: 80

約数和(自身を含む): 470099520

約数和(自身を除く): 148916395

約数列:

[1, 5, 17, 19, 25, 37, 43, 85, 95, 125, 185, 215, 323, 425, 475, 625, 629, 703, 731, 817, 925, 1075, 1591, 1615, 2125, 2375, 3145, 3515, 3655, 4085, 4625, 5375, 7955, 8075, 10625, 11875, 11951, 13889, 15725, 17575, 18275, 20425, 23125, 26875, 27047, 30229, 39775, 40375, 59755, 69445, 78625, 87875, 91375, 102125, 135235, 151145, 198875, 201875, 298775, 347225, 393125, 439375, 456875, 510625, 513893, 676175, 755725, 994375, 1493875, 1736125, 2569465, 3380875, 3778625, 7469375, 8680625, 12847325, 16904375, 18893125, 64236625, 321183125]

約数ペア:

[(1, 321183125), (5, 64236625), (17, 18893125), (19, 16904375), (25, 12847325), (37, 8680625), (43, 7469375), (85, 3778625), (95, 3380875), (125, 2569465), (185, 1736125), (215, 1493875), (323, 994375), (425, 755725), (475, 676175), (625, 513893), (629, 510625), (703, 456875), (731, 439375), (817, 393125), (925, 347225), (1075, 298775), (1591, 201875), (1615, 198875), (2125, 151145), (2375, 135235), (3145, 102125), (3515, 91375), (3655, 87875), (4085, 78625), (4625, 69445), (5375, 59755), (7955, 40375), (8075, 39775), (10625, 30229), (11875, 27047), (11951, 26875), (13889, 23125), (15725, 20425), (17575, 18275)]