646770780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{2179}}^1$

素因数の和:2308

約数の個数: 144

約数和(自身を含む): 2099653920

約数和(自身を除く): 1452883140

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 85, 90, 97, 102, 153, 170, 180, 194, 204, 255, 291, 306, 340, 388, 485, 510, 582, 612, 765, 873, 970, 1020, 1164, 1455, 1530, 1649, 1746, 1940, 2179, 2910, 3060, 3298, 3492, 4358, 4365, 4947, 5820, 6537, 6596, 8245, 8716, 8730, 9894, 10895, 13074, 14841, 16490, 17460, 19611, 19788, 21790, 24735, 26148, 29682, 32685, 32980, 37043, 39222, 43580, 49470, 59364, 65370, 74086, 74205, 78444, 98055, 98940, 111129, 130740, 148172, 148410, 185215, 196110, 211363, 222258, 296820, 333387, 370430, 392220, 422726, 444516, 555645, 634089, 666774, 740860, 845452, 1056815, 1111290, 1268178, 1333548, 1666935, 1902267, 2113630, 2222580, 2536356, 3170445, 3333870, 3593171, 3804534, 4227260, 6340890, 6667740, 7186342, 7609068, 9511335, 10779513, 12681780, 14372684, 17965855, 19022670, 21559026, 32338539, 35931710, 38045340, 43118052, 53897565, 64677078, 71863420, 107795130, 129354156, 161692695, 215590260, 323385390, 646770780]

約数ペア:

[(1, 646770780), (2, 323385390), (3, 215590260), (4, 161692695), (5, 129354156), (6, 107795130), (9, 71863420), (10, 64677078), (12, 53897565), (15, 43118052), (17, 38045340), (18, 35931710), (20, 32338539), (30, 21559026), (34, 19022670), (36, 17965855), (45, 14372684), (51, 12681780), (60, 10779513), (68, 9511335), (85, 7609068), (90, 7186342), (97, 6667740), (102, 6340890), (153, 4227260), (170, 3804534), (180, 3593171), (194, 3333870), (204, 3170445), (255, 2536356), (291, 2222580), (306, 2113630), (340, 1902267), (388, 1666935), (485, 1333548), (510, 1268178), (582, 1111290), (612, 1056815), (765, 845452), (873, 740860), (970, 666774), (1020, 634089), (1164, 555645), (1455, 444516), (1530, 422726), (1649, 392220), (1746, 370430), (1940, 333387), (2179, 296820), (2910, 222258), (3060, 211363), (3298, 196110), (3492, 185215), (4358, 148410), (4365, 148172), (4947, 130740), (5820, 111129), (6537, 98940), (6596, 98055), (8245, 78444), (8716, 74205), (8730, 74086), (9894, 65370), (10895, 59364), (13074, 49470), (14841, 43580), (16490, 39222), (17460, 37043), (19611, 32980), (19788, 32685), (21790, 29682), (24735, 26148)]