720544780

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{313}}^1$

素因数の和:479

約数の個数: 96

約数和(自身を含む): 1620541440

約数和(自身を除く): 899996660

約数列:

[1, 2, 4, 5, 10, 20, 31, 47, 62, 79, 94, 124, 155, 158, 188, 235, 310, 313, 316, 395, 470, 620, 626, 790, 940, 1252, 1457, 1565, 1580, 2449, 2914, 3130, 3713, 4898, 5828, 6260, 7285, 7426, 9703, 9796, 12245, 14570, 14711, 14852, 18565, 19406, 24490, 24727, 29140, 29422, 37130, 38812, 48515, 48980, 49454, 58844, 73555, 74260, 97030, 98908, 115103, 123635, 147110, 194060, 230206, 247270, 294220, 456041, 460412, 494540, 575515, 766537, 912082, 1151030, 1162169, 1533074, 1824164, 2280205, 2302060, 2324338, 3066148, 3832685, 4560410, 4648676, 5810845, 7665370, 9120820, 11621690, 15330740, 23243380, 36027239, 72054478, 144108956, 180136195, 360272390, 720544780]

約数ペア:

[(1, 720544780), (2, 360272390), (4, 180136195), (5, 144108956), (10, 72054478), (20, 36027239), (31, 23243380), (47, 15330740), (62, 11621690), (79, 9120820), (94, 7665370), (124, 5810845), (155, 4648676), (158, 4560410), (188, 3832685), (235, 3066148), (310, 2324338), (313, 2302060), (316, 2280205), (395, 1824164), (470, 1533074), (620, 1162169), (626, 1151030), (790, 912082), (940, 766537), (1252, 575515), (1457, 494540), (1565, 460412), (1580, 456041), (2449, 294220), (2914, 247270), (3130, 230206), (3713, 194060), (4898, 147110), (5828, 123635), (6260, 115103), (7285, 98908), (7426, 97030), (9703, 74260), (9796, 73555), (12245, 58844), (14570, 49454), (14711, 48980), (14852, 48515), (18565, 38812), (19406, 37130), (24490, 29422), (24727, 29140)]