28443380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1$

素因数の和:106

約数の個数: 144

約数和(自身を含む): 78395520

約数和(自身を除く): 49952140

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 19, 20, 28, 34, 35, 37, 38, 68, 70, 74, 76, 85, 95, 119, 133, 140, 148, 170, 185, 190, 238, 259, 266, 289, 323, 340, 370, 380, 476, 518, 532, 578, 595, 629, 646, 665, 703, 740, 1036, 1156, 1190, 1258, 1292, 1295, 1330, 1406, 1445, 1615, 2023, 2261, 2380, 2516, 2590, 2660, 2812, 2890, 3145, 3230, 3515, 4046, 4403, 4522, 4921, 5180, 5491, 5780, 6290, 6460, 7030, 8092, 8806, 9044, 9842, 10115, 10693, 10982, 11305, 11951, 12580, 14060, 17612, 19684, 20230, 21386, 21964, 22015, 22610, 23902, 24605, 27455, 38437, 40460, 42772, 44030, 45220, 47804, 49210, 53465, 54910, 59755, 74851, 76874, 83657, 88060, 98420, 106930, 109820, 119510, 149702, 153748, 167314, 192185, 203167, 213860, 239020, 299404, 334628, 374255, 384370, 406334, 418285, 748510, 768740, 812668, 836570, 1015835, 1422169, 1497020, 1673140, 2031670, 2844338, 4063340, 5688676, 7110845, 14221690, 28443380]

約数ペア:

[(1, 28443380), (2, 14221690), (4, 7110845), (5, 5688676), (7, 4063340), (10, 2844338), (14, 2031670), (17, 1673140), (19, 1497020), (20, 1422169), (28, 1015835), (34, 836570), (35, 812668), (37, 768740), (38, 748510), (68, 418285), (70, 406334), (74, 384370), (76, 374255), (85, 334628), (95, 299404), (119, 239020), (133, 213860), (140, 203167), (148, 192185), (170, 167314), (185, 153748), (190, 149702), (238, 119510), (259, 109820), (266, 106930), (289, 98420), (323, 88060), (340, 83657), (370, 76874), (380, 74851), (476, 59755), (518, 54910), (532, 53465), (578, 49210), (595, 47804), (629, 45220), (646, 44030), (665, 42772), (703, 40460), (740, 38437), (1036, 27455), (1156, 24605), (1190, 23902), (1258, 22610), (1292, 22015), (1295, 21964), (1330, 21386), (1406, 20230), (1445, 19684), (1615, 17612), (2023, 14060), (2261, 12580), (2380, 11951), (2516, 11305), (2590, 10982), (2660, 10693), (2812, 10115), (2890, 9842), (3145, 9044), (3230, 8806), (3515, 8092), (4046, 7030), (4403, 6460), (4522, 6290), (4921, 5780), (5180, 5491)]