1681223778

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{401}}^1$

素因数の和:505

約数の個数: 192

約数和(自身を含む): 4424958720

約数和(自身を除く): 2743734942

約数列:

[1, 2, 3, 6, 9, 13, 18, 19, 23, 26, 38, 39, 41, 46, 57, 69, 78, 82, 114, 117, 123, 138, 171, 207, 234, 246, 247, 299, 342, 369, 401, 414, 437, 494, 533, 598, 738, 741, 779, 802, 874, 897, 943, 1066, 1203, 1311, 1482, 1558, 1599, 1794, 1886, 2223, 2337, 2406, 2622, 2691, 2829, 3198, 3609, 3933, 4446, 4674, 4797, 5213, 5382, 5658, 5681, 7011, 7218, 7619, 7866, 8487, 9223, 9594, 10127, 10426, 11362, 12259, 14022, 15238, 15639, 16441, 16974, 17043, 17917, 18446, 20254, 22857, 24518, 27669, 30381, 31278, 32882, 34086, 35834, 36777, 45714, 46917, 49323, 51129, 53751, 55338, 60762, 68571, 73554, 83007, 91143, 93834, 98646, 99047, 102258, 107502, 110331, 119899, 137142, 147969, 161253, 166014, 175237, 182286, 198094, 213733, 220662, 232921, 239798, 295938, 297141, 312379, 322506, 350474, 359697, 378143, 427466, 465842, 525711, 594282, 624758, 641199, 698763, 719394, 756286, 891423, 937137, 1051422, 1079091, 1134429, 1282398, 1397526, 1577133, 1782846, 1874274, 1923597, 2096289, 2158182, 2268858, 2278081, 2811411, 3154266, 3403287, 3847194, 4060927, 4192578, 4556162, 4915859, 5622822, 6806574, 6834243, 7184717, 8121854, 9831718, 12182781, 13668486, 14369434, 14747577, 20502729, 21554151, 24365562, 29495154, 36548343, 41005458, 43108302, 44242731, 64662453, 73096686, 88485462, 93401321, 129324906, 186802642, 280203963, 560407926, 840611889, 1681223778]

約数ペア:

[(1, 1681223778), (2, 840611889), (3, 560407926), (6, 280203963), (9, 186802642), (13, 129324906), (18, 93401321), (19, 88485462), (23, 73096686), (26, 64662453), (38, 44242731), (39, 43108302), (41, 41005458), (46, 36548343), (57, 29495154), (69, 24365562), (78, 21554151), (82, 20502729), (114, 14747577), (117, 14369434), (123, 13668486), (138, 12182781), (171, 9831718), (207, 8121854), (234, 7184717), (246, 6834243), (247, 6806574), (299, 5622822), (342, 4915859), (369, 4556162), (401, 4192578), (414, 4060927), (437, 3847194), (494, 3403287), (533, 3154266), (598, 2811411), (738, 2278081), (741, 2268858), (779, 2158182), (802, 2096289), (874, 1923597), (897, 1874274), (943, 1782846), (1066, 1577133), (1203, 1397526), (1311, 1282398), (1482, 1134429), (1558, 1079091), (1599, 1051422), (1794, 937137), (1886, 891423), (2223, 756286), (2337, 719394), (2406, 698763), (2622, 641199), (2691, 624758), (2829, 594282), (3198, 525711), (3609, 465842), (3933, 427466), (4446, 378143), (4674, 359697), (4797, 350474), (5213, 322506), (5382, 312379), (5658, 297141), (5681, 295938), (7011, 239798), (7218, 232921), (7619, 220662), (7866, 213733), (8487, 198094), (9223, 182286), (9594, 175237), (10127, 166014), (10426, 161253), (11362, 147969), (12259, 137142), (14022, 119899), (15238, 110331), (15639, 107502), (16441, 102258), (16974, 99047), (17043, 98646), (17917, 93834), (18446, 91143), (20254, 83007), (22857, 73554), (24518, 68571), (27669, 60762), (30381, 55338), (31278, 53751), (32882, 51129), (34086, 49323), (35834, 46917), (36777, 45714)]