678644980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{379}}^1$

素因数の和:569

約数の個数: 96

約数和(自身を含む): 1576592640

約数和(自身を除く): 897947660

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 71, 97, 130, 142, 194, 260, 284, 355, 379, 388, 485, 710, 758, 923, 970, 1261, 1420, 1516, 1846, 1895, 1940, 2522, 3692, 3790, 4615, 4927, 5044, 6305, 6887, 7580, 9230, 9854, 12610, 13774, 18460, 19708, 24635, 25220, 26909, 27548, 34435, 36763, 49270, 53818, 68870, 73526, 89531, 98540, 107636, 134545, 137740, 147052, 179062, 183815, 269090, 349817, 358124, 367630, 447655, 477919, 538180, 699634, 735260, 895310, 955838, 1399268, 1749085, 1790620, 1911676, 2389595, 2610173, 3498170, 4779190, 5220346, 6996340, 9558380, 10440692, 13050865, 26101730, 33932249, 52203460, 67864498, 135728996, 169661245, 339322490, 678644980]

約数ペア:

[(1, 678644980), (2, 339322490), (4, 169661245), (5, 135728996), (10, 67864498), (13, 52203460), (20, 33932249), (26, 26101730), (52, 13050865), (65, 10440692), (71, 9558380), (97, 6996340), (130, 5220346), (142, 4779190), (194, 3498170), (260, 2610173), (284, 2389595), (355, 1911676), (379, 1790620), (388, 1749085), (485, 1399268), (710, 955838), (758, 895310), (923, 735260), (970, 699634), (1261, 538180), (1420, 477919), (1516, 447655), (1846, 367630), (1895, 358124), (1940, 349817), (2522, 269090), (3692, 183815), (3790, 179062), (4615, 147052), (4927, 137740), (5044, 134545), (6305, 107636), (6887, 98540), (7580, 89531), (9230, 73526), (9854, 68870), (12610, 53818), (13774, 49270), (18460, 36763), (19708, 34435), (24635, 27548), (25220, 26909)]