261887835

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{229}}^1\times {\mathrm{239}}^1$

素因数の和:516

約数の個数: 64

約数和(自身を含む): 476928000

約数和(自身を除く): 215040165

約数列:

[1, 3, 5, 11, 15, 29, 33, 55, 87, 145, 165, 229, 239, 319, 435, 687, 717, 957, 1145, 1195, 1595, 2519, 2629, 3435, 3585, 4785, 6641, 6931, 7557, 7887, 12595, 13145, 19923, 20793, 33205, 34655, 37785, 39435, 54731, 73051, 76241, 99615, 103965, 164193, 219153, 228723, 273655, 365255, 381205, 602041, 820965, 1095765, 1143615, 1587199, 1806123, 3010205, 4761597, 7935995, 9030615, 17459189, 23807985, 52377567, 87295945, 261887835]

約数ペア:

[(1, 261887835), (3, 87295945), (5, 52377567), (11, 23807985), (15, 17459189), (29, 9030615), (33, 7935995), (55, 4761597), (87, 3010205), (145, 1806123), (165, 1587199), (229, 1143615), (239, 1095765), (319, 820965), (435, 602041), (687, 381205), (717, 365255), (957, 273655), (1145, 228723), (1195, 219153), (1595, 164193), (2519, 103965), (2629, 99615), (3435, 76241), (3585, 73051), (4785, 54731), (6641, 39435), (6931, 37785), (7557, 34655), (7887, 33205), (12595, 20793), (13145, 19923)]