280689500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1$

素因数の和:269

約数の個数: 192

約数和(自身を含む): 782745600

約数和(自身を除く): 502056100

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 25, 26, 28, 31, 35, 50, 52, 62, 65, 70, 91, 100, 124, 125, 130, 140, 155, 175, 182, 199, 217, 250, 260, 310, 325, 350, 364, 398, 403, 434, 455, 500, 620, 650, 700, 775, 796, 806, 868, 875, 910, 995, 1085, 1300, 1393, 1550, 1612, 1625, 1750, 1820, 1990, 2015, 2170, 2275, 2587, 2786, 2821, 3100, 3250, 3500, 3875, 3980, 4030, 4340, 4550, 4975, 5174, 5425, 5572, 5642, 6169, 6500, 6965, 7750, 8060, 9100, 9950, 10075, 10348, 10850, 11284, 11375, 12338, 12935, 13930, 14105, 15500, 18109, 19900, 20150, 21700, 22750, 24676, 24875, 25870, 27125, 27860, 28210, 30845, 34825, 36218, 40300, 43183, 45500, 49750, 50375, 51740, 54250, 56420, 61690, 64675, 69650, 70525, 72436, 80197, 86366, 90545, 99500, 100750, 108500, 123380, 129350, 139300, 141050, 154225, 160394, 172732, 174125, 181090, 201500, 215915, 258700, 282100, 308450, 320788, 323375, 348250, 352625, 362180, 400985, 431830, 452725, 561379, 616900, 646750, 696500, 705250, 771125, 801970, 863660, 905450, 1079575, 1122758, 1293500, 1410500, 1542250, 1603940, 1810900, 2004925, 2159150, 2245516, 2263625, 2806895, 3084500, 4009850, 4318300, 4527250, 5397875, 5613790, 8019700, 9054500, 10024625, 10795750, 11227580, 14034475, 20049250, 21591500, 28068950, 40098500, 56137900, 70172375, 140344750, 280689500]

約数ペア:

[(1, 280689500), (2, 140344750), (4, 70172375), (5, 56137900), (7, 40098500), (10, 28068950), (13, 21591500), (14, 20049250), (20, 14034475), (25, 11227580), (26, 10795750), (28, 10024625), (31, 9054500), (35, 8019700), (50, 5613790), (52, 5397875), (62, 4527250), (65, 4318300), (70, 4009850), (91, 3084500), (100, 2806895), (124, 2263625), (125, 2245516), (130, 2159150), (140, 2004925), (155, 1810900), (175, 1603940), (182, 1542250), (199, 1410500), (217, 1293500), (250, 1122758), (260, 1079575), (310, 905450), (325, 863660), (350, 801970), (364, 771125), (398, 705250), (403, 696500), (434, 646750), (455, 616900), (500, 561379), (620, 452725), (650, 431830), (700, 400985), (775, 362180), (796, 352625), (806, 348250), (868, 323375), (875, 320788), (910, 308450), (995, 282100), (1085, 258700), (1300, 215915), (1393, 201500), (1550, 181090), (1612, 174125), (1625, 172732), (1750, 160394), (1820, 154225), (1990, 141050), (2015, 139300), (2170, 129350), (2275, 123380), (2587, 108500), (2786, 100750), (2821, 99500), (3100, 90545), (3250, 86366), (3500, 80197), (3875, 72436), (3980, 70525), (4030, 69650), (4340, 64675), (4550, 61690), (4975, 56420), (5174, 54250), (5425, 51740), (5572, 50375), (5642, 49750), (6169, 45500), (6500, 43183), (6965, 40300), (7750, 36218), (8060, 34825), (9100, 30845), (9950, 28210), (10075, 27860), (10348, 27125), (10850, 25870), (11284, 24875), (11375, 24676), (12338, 22750), (12935, 21700), (13930, 20150), (14105, 19900), (15500, 18109)]