281027880

素因数分解:

$2^3\times 3^4\times 5^1\times 7^1\times {\mathrm{12391}}^1$

素因数の和:12421

約数の個数: 160

約数和(自身を含む): 1079591040

約数和(自身を除く): 798563160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 81, 84, 90, 105, 108, 120, 126, 135, 140, 162, 168, 180, 189, 210, 216, 252, 270, 280, 315, 324, 360, 378, 405, 420, 504, 540, 567, 630, 648, 756, 810, 840, 945, 1080, 1134, 1260, 1512, 1620, 1890, 2268, 2520, 2835, 3240, 3780, 4536, 5670, 7560, 11340, 12391, 22680, 24782, 37173, 49564, 61955, 74346, 86737, 99128, 111519, 123910, 148692, 173474, 185865, 223038, 247820, 260211, 297384, 334557, 346948, 371730, 433685, 446076, 495640, 520422, 557595, 669114, 693896, 743460, 780633, 867370, 892152, 1003671, 1040844, 1115190, 1301055, 1338228, 1486920, 1561266, 1672785, 1734740, 2007342, 2081688, 2230380, 2341899, 2602110, 2676456, 3122532, 3345570, 3469480, 3903165, 4014684, 4460760, 4683798, 5018355, 5204220, 6245064, 6691140, 7025697, 7806330, 8029368, 9367596, 10036710, 10408440, 11709495, 13382280, 14051394, 15612660, 18735192, 20073420, 23418990, 28102788, 31225320, 35128485, 40146840, 46837980, 56205576, 70256970, 93675960, 140513940, 281027880]

約数ペア:

[(1, 281027880), (2, 140513940), (3, 93675960), (4, 70256970), (5, 56205576), (6, 46837980), (7, 40146840), (8, 35128485), (9, 31225320), (10, 28102788), (12, 23418990), (14, 20073420), (15, 18735192), (18, 15612660), (20, 14051394), (21, 13382280), (24, 11709495), (27, 10408440), (28, 10036710), (30, 9367596), (35, 8029368), (36, 7806330), (40, 7025697), (42, 6691140), (45, 6245064), (54, 5204220), (56, 5018355), (60, 4683798), (63, 4460760), (70, 4014684), (72, 3903165), (81, 3469480), (84, 3345570), (90, 3122532), (105, 2676456), (108, 2602110), (120, 2341899), (126, 2230380), (135, 2081688), (140, 2007342), (162, 1734740), (168, 1672785), (180, 1561266), (189, 1486920), (210, 1338228), (216, 1301055), (252, 1115190), (270, 1040844), (280, 1003671), (315, 892152), (324, 867370), (360, 780633), (378, 743460), (405, 693896), (420, 669114), (504, 557595), (540, 520422), (567, 495640), (630, 446076), (648, 433685), (756, 371730), (810, 346948), (840, 334557), (945, 297384), (1080, 260211), (1134, 247820), (1260, 223038), (1512, 185865), (1620, 173474), (1890, 148692), (2268, 123910), (2520, 111519), (2835, 99128), (3240, 86737), (3780, 74346), (4536, 61955), (5670, 49564), (7560, 37173), (11340, 24782), (12391, 22680)]