20722973375

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{5099}}^1$

素因数の和:5229

約数の個数: 64

約数和(自身を含む): 29004393600

約数和(自身を除く): 8281420225

約数列:

[1, 5, 13, 25, 41, 61, 65, 125, 205, 305, 325, 533, 793, 1025, 1525, 1625, 2501, 2665, 3965, 5099, 5125, 7625, 12505, 13325, 19825, 25495, 32513, 62525, 66287, 66625, 99125, 127475, 162565, 209059, 311039, 312625, 331435, 637375, 812825, 1045295, 1555195, 1657175, 2717767, 4043507, 4064125, 5226475, 7775975, 8285875, 12752599, 13588835, 20217535, 26132375, 38879875, 63762995, 67944175, 101087675, 165783787, 318814975, 339720875, 505438375, 828918935, 1594074875, 4144594675, 20722973375]

約数ペア:

[(1, 20722973375), (5, 4144594675), (13, 1594074875), (25, 828918935), (41, 505438375), (61, 339720875), (65, 318814975), (125, 165783787), (205, 101087675), (305, 67944175), (325, 63762995), (533, 38879875), (793, 26132375), (1025, 20217535), (1525, 13588835), (1625, 12752599), (2501, 8285875), (2665, 7775975), (3965, 5226475), (5099, 4064125), (5125, 4043507), (7625, 2717767), (12505, 1657175), (13325, 1555195), (19825, 1045295), (25495, 812825), (32513, 637375), (62525, 331435), (66287, 312625), (66625, 311039), (99125, 209059), (127475, 162565)]