260052715

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1$

素因数の和:256

約数の個数: 64

約数和(自身を含む): 375580800

約数和(自身を除く): 115528085

約数列:

[1, 5, 13, 19, 29, 53, 65, 95, 137, 145, 247, 265, 377, 551, 685, 689, 1007, 1235, 1537, 1781, 1885, 2603, 2755, 3445, 3973, 5035, 7163, 7261, 7685, 8905, 13015, 13091, 19865, 19981, 29203, 33839, 35815, 36305, 51649, 65455, 75487, 94393, 99905, 137959, 146015, 169195, 210569, 258245, 377435, 379639, 471965, 689795, 981331, 1052845, 1793467, 1898195, 2737397, 4000811, 4906655, 8967335, 13686985, 20004055, 52010543, 260052715]

約数ペア:

[(1, 260052715), (5, 52010543), (13, 20004055), (19, 13686985), (29, 8967335), (53, 4906655), (65, 4000811), (95, 2737397), (137, 1898195), (145, 1793467), (247, 1052845), (265, 981331), (377, 689795), (551, 471965), (685, 379639), (689, 377435), (1007, 258245), (1235, 210569), (1537, 169195), (1781, 146015), (1885, 137959), (2603, 99905), (2755, 94393), (3445, 75487), (3973, 65455), (5035, 51649), (7163, 36305), (7261, 35815), (7685, 33839), (8905, 29203), (13015, 19981), (13091, 19865)]