21290960340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{478879}}^1$

素因数の和:478926

約数の個数: 144

約数和(自身を含む): 73211174400

約数和(自身を除く): 51920214060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 19, 20, 26, 30, 36, 38, 39, 45, 52, 57, 60, 65, 76, 78, 90, 95, 114, 117, 130, 156, 171, 180, 190, 195, 228, 234, 247, 260, 285, 342, 380, 390, 468, 494, 570, 585, 684, 741, 780, 855, 988, 1140, 1170, 1235, 1482, 1710, 2223, 2340, 2470, 2964, 3420, 3705, 4446, 4940, 7410, 8892, 11115, 14820, 22230, 44460, 478879, 957758, 1436637, 1915516, 2394395, 2873274, 4309911, 4788790, 5746548, 6225427, 7183185, 8619822, 9098701, 9577580, 12450854, 14366370, 17239644, 18197402, 18676281, 21549555, 24901708, 27296103, 28732740, 31127135, 36394804, 37352562, 43099110, 45493505, 54592206, 56028843, 62254270, 74705124, 81888309, 86198220, 90987010, 93381405, 109184412, 112057686, 118283113, 124508540, 136480515, 163776618, 181974020, 186762810, 224115372, 236566226, 272961030, 280144215, 327553236, 354849339, 373525620, 409441545, 473132452, 545922060, 560288430, 591415565, 709698678, 818883090, 1064548017, 1120576860, 1182831130, 1419397356, 1637766180, 1774246695, 2129096034, 2365662260, 3548493390, 4258192068, 5322740085, 7096986780, 10645480170, 21290960340]

約数ペア:

[(1, 21290960340), (2, 10645480170), (3, 7096986780), (4, 5322740085), (5, 4258192068), (6, 3548493390), (9, 2365662260), (10, 2129096034), (12, 1774246695), (13, 1637766180), (15, 1419397356), (18, 1182831130), (19, 1120576860), (20, 1064548017), (26, 818883090), (30, 709698678), (36, 591415565), (38, 560288430), (39, 545922060), (45, 473132452), (52, 409441545), (57, 373525620), (60, 354849339), (65, 327553236), (76, 280144215), (78, 272961030), (90, 236566226), (95, 224115372), (114, 186762810), (117, 181974020), (130, 163776618), (156, 136480515), (171, 124508540), (180, 118283113), (190, 112057686), (195, 109184412), (228, 93381405), (234, 90987010), (247, 86198220), (260, 81888309), (285, 74705124), (342, 62254270), (380, 56028843), (390, 54592206), (468, 45493505), (494, 43099110), (570, 37352562), (585, 36394804), (684, 31127135), (741, 28732740), (780, 27296103), (855, 24901708), (988, 21549555), (1140, 18676281), (1170, 18197402), (1235, 17239644), (1482, 14366370), (1710, 12450854), (2223, 9577580), (2340, 9098701), (2470, 8619822), (2964, 7183185), (3420, 6225427), (3705, 5746548), (4446, 4788790), (4940, 4309911), (7410, 2873274), (8892, 2394395), (11115, 1915516), (14820, 1436637), (22230, 957758), (44460, 478879)]