30781531875

素因数分解:

$3^1\times 5^4\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{7927}}^1$

素因数の和:8078

約数の個数: 80

約数和(自身を含む): 54487558400

約数和(自身を除く): 23706026525

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 95, 109, 125, 285, 327, 375, 475, 545, 625, 1425, 1635, 1875, 2071, 2375, 2725, 6213, 7125, 7927, 8175, 10355, 11875, 13625, 23781, 31065, 35625, 39635, 40875, 51775, 68125, 118905, 150613, 155325, 198175, 204375, 258875, 451839, 594525, 753065, 776625, 864043, 990875, 1294375, 2259195, 2592129, 2972625, 3765325, 3883125, 4320215, 4954375, 11295975, 12960645, 14863125, 16416817, 18826625, 21601075, 49250451, 56479875, 64803225, 82084085, 94133125, 108005375, 246252255, 282399375, 324016125, 410420425, 540026875, 1231261275, 1620080625, 2052102125, 6156306375, 10260510625, 30781531875]

約数ペア:

[(1, 30781531875), (3, 10260510625), (5, 6156306375), (15, 2052102125), (19, 1620080625), (25, 1231261275), (57, 540026875), (75, 410420425), (95, 324016125), (109, 282399375), (125, 246252255), (285, 108005375), (327, 94133125), (375, 82084085), (475, 64803225), (545, 56479875), (625, 49250451), (1425, 21601075), (1635, 18826625), (1875, 16416817), (2071, 14863125), (2375, 12960645), (2725, 11295975), (6213, 4954375), (7125, 4320215), (7927, 3883125), (8175, 3765325), (10355, 2972625), (11875, 2592129), (13625, 2259195), (23781, 1294375), (31065, 990875), (35625, 864043), (39635, 776625), (40875, 753065), (51775, 594525), (68125, 451839), (118905, 258875), (150613, 204375), (155325, 198175)]