78744380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{2503}}^1$

素因数の和:2547

約数の個数: 72

約数和(自身を含む): 195822816

約数和(自身を除く): 117078436

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 121, 130, 143, 220, 242, 260, 286, 484, 572, 605, 715, 1210, 1430, 1573, 2420, 2503, 2860, 3146, 5006, 6292, 7865, 10012, 12515, 15730, 25030, 27533, 31460, 32539, 50060, 55066, 65078, 110132, 130156, 137665, 162695, 275330, 302863, 325390, 357929, 550660, 605726, 650780, 715858, 1211452, 1431716, 1514315, 1789645, 3028630, 3579290, 3937219, 6057260, 7158580, 7874438, 15748876, 19686095, 39372190, 78744380]

約数ペア:

[(1, 78744380), (2, 39372190), (4, 19686095), (5, 15748876), (10, 7874438), (11, 7158580), (13, 6057260), (20, 3937219), (22, 3579290), (26, 3028630), (44, 1789645), (52, 1514315), (55, 1431716), (65, 1211452), (110, 715858), (121, 650780), (130, 605726), (143, 550660), (220, 357929), (242, 325390), (260, 302863), (286, 275330), (484, 162695), (572, 137665), (605, 130156), (715, 110132), (1210, 65078), (1430, 55066), (1573, 50060), (2420, 32539), (2503, 31460), (2860, 27533), (3146, 25030), (5006, 15730), (6292, 12515), (7865, 10012)]