78641325

素因数分解:

$3^2\times 5^2\times 7^3\times {\mathrm{1019}}^1$

素因数の和:1056

約数の個数: 72

約数和(自身を含む): 164424000

約数和(自身を除く): 85782675

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 49, 63, 75, 105, 147, 175, 225, 245, 315, 343, 441, 525, 735, 1019, 1029, 1225, 1575, 1715, 2205, 3057, 3087, 3675, 5095, 5145, 7133, 8575, 9171, 11025, 15285, 15435, 21399, 25475, 25725, 35665, 45855, 49931, 64197, 76425, 77175, 106995, 149793, 178325, 229275, 249655, 320985, 349517, 449379, 534975, 748965, 1048551, 1248275, 1604925, 1747585, 2246895, 3145653, 3744825, 5242755, 8737925, 11234475, 15728265, 26213775, 78641325]

約数ペア:

[(1, 78641325), (3, 26213775), (5, 15728265), (7, 11234475), (9, 8737925), (15, 5242755), (21, 3744825), (25, 3145653), (35, 2246895), (45, 1747585), (49, 1604925), (63, 1248275), (75, 1048551), (105, 748965), (147, 534975), (175, 449379), (225, 349517), (245, 320985), (315, 249655), (343, 229275), (441, 178325), (525, 149793), (735, 106995), (1019, 77175), (1029, 76425), (1225, 64197), (1575, 49931), (1715, 45855), (2205, 35665), (3057, 25725), (3087, 25475), (3675, 21399), (5095, 15435), (5145, 15285), (7133, 11025), (8575, 9171)]