1280916

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1$

素因数の和:70

約数の個数: 144

約数和(自身を含む): 4402944

約数和(自身を除く): 3122028

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 17, 18, 21, 23, 26, 28, 34, 36, 39, 42, 46, 51, 52, 63, 68, 69, 78, 84, 91, 92, 102, 117, 119, 126, 138, 153, 156, 161, 182, 204, 207, 221, 234, 238, 252, 273, 276, 299, 306, 322, 357, 364, 391, 414, 442, 468, 476, 483, 546, 598, 612, 644, 663, 714, 782, 819, 828, 884, 897, 966, 1071, 1092, 1173, 1196, 1326, 1428, 1449, 1547, 1564, 1638, 1794, 1932, 1989, 2093, 2142, 2346, 2652, 2691, 2737, 2898, 3094, 3276, 3519, 3588, 3978, 4186, 4284, 4641, 4692, 5083, 5382, 5474, 5796, 6188, 6279, 7038, 7956, 8211, 8372, 9282, 10166, 10764, 10948, 12558, 13923, 14076, 15249, 16422, 18564, 18837, 20332, 24633, 25116, 27846, 30498, 32844, 35581, 37674, 45747, 49266, 55692, 60996, 71162, 75348, 91494, 98532, 106743, 142324, 182988, 213486, 320229, 426972, 640458, 1280916]

約数ペア:

[(1, 1280916), (2, 640458), (3, 426972), (4, 320229), (6, 213486), (7, 182988), (9, 142324), (12, 106743), (13, 98532), (14, 91494), (17, 75348), (18, 71162), (21, 60996), (23, 55692), (26, 49266), (28, 45747), (34, 37674), (36, 35581), (39, 32844), (42, 30498), (46, 27846), (51, 25116), (52, 24633), (63, 20332), (68, 18837), (69, 18564), (78, 16422), (84, 15249), (91, 14076), (92, 13923), (102, 12558), (117, 10948), (119, 10764), (126, 10166), (138, 9282), (153, 8372), (156, 8211), (161, 7956), (182, 7038), (204, 6279), (207, 6188), (221, 5796), (234, 5474), (238, 5382), (252, 5083), (273, 4692), (276, 4641), (299, 4284), (306, 4186), (322, 3978), (357, 3588), (364, 3519), (391, 3276), (414, 3094), (442, 2898), (468, 2737), (476, 2691), (483, 2652), (546, 2346), (598, 2142), (612, 2093), (644, 1989), (663, 1932), (714, 1794), (782, 1638), (819, 1564), (828, 1547), (884, 1449), (897, 1428), (966, 1326), (1071, 1196), (1092, 1173)]