18780636225

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{47797}}^1$

素因数の和:47867

約数の個数: 72

約数和(自身を含む): 34708230912

約数和(自身を除く): 15927594687

約数列:

[1, 3, 5, 13, 15, 25, 31, 39, 65, 75, 93, 155, 169, 195, 325, 403, 465, 507, 775, 845, 975, 1209, 2015, 2325, 2535, 4225, 5239, 6045, 10075, 12675, 15717, 26195, 30225, 47797, 78585, 130975, 143391, 238985, 392925, 621361, 716955, 1194925, 1481707, 1864083, 3106805, 3584775, 4445121, 7408535, 8077693, 9320415, 15534025, 19262191, 22225605, 24233079, 37042675, 40388465, 46602075, 57786573, 96310955, 111128025, 121165395, 201942325, 250408483, 288932865, 481554775, 605826975, 751225449, 1252042415, 1444664325, 3756127245, 6260212075, 18780636225]

約数ペア:

[(1, 18780636225), (3, 6260212075), (5, 3756127245), (13, 1444664325), (15, 1252042415), (25, 751225449), (31, 605826975), (39, 481554775), (65, 288932865), (75, 250408483), (93, 201942325), (155, 121165395), (169, 111128025), (195, 96310955), (325, 57786573), (403, 46602075), (465, 40388465), (507, 37042675), (775, 24233079), (845, 22225605), (975, 19262191), (1209, 15534025), (2015, 9320415), (2325, 8077693), (2535, 7408535), (4225, 4445121), (5239, 3584775), (6045, 3106805), (10075, 1864083), (12675, 1481707), (15717, 1194925), (26195, 716955), (30225, 621361), (47797, 392925), (78585, 238985), (130975, 143391)]