2565640

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1$

素因数の和:60

約数の個数: 128

約数和(自身を含む): 7776000

約数和(自身を除く): 5210360

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 17, 20, 22, 28, 34, 35, 40, 44, 49, 55, 56, 68, 70, 77, 85, 88, 98, 110, 119, 136, 140, 154, 170, 187, 196, 220, 238, 245, 280, 308, 340, 343, 374, 385, 392, 440, 476, 490, 539, 595, 616, 680, 686, 748, 770, 833, 935, 952, 980, 1078, 1190, 1309, 1372, 1496, 1540, 1666, 1715, 1870, 1960, 2156, 2380, 2618, 2695, 2744, 3080, 3332, 3430, 3740, 3773, 4165, 4312, 4760, 5236, 5390, 5831, 6545, 6664, 6860, 7480, 7546, 8330, 9163, 10472, 10780, 11662, 13090, 13720, 15092, 16660, 18326, 18865, 21560, 23324, 26180, 29155, 30184, 33320, 36652, 37730, 45815, 46648, 52360, 58310, 64141, 73304, 75460, 91630, 116620, 128282, 150920, 183260, 233240, 256564, 320705, 366520, 513128, 641410, 1282820, 2565640]

約数ペア:

[(1, 2565640), (2, 1282820), (4, 641410), (5, 513128), (7, 366520), (8, 320705), (10, 256564), (11, 233240), (14, 183260), (17, 150920), (20, 128282), (22, 116620), (28, 91630), (34, 75460), (35, 73304), (40, 64141), (44, 58310), (49, 52360), (55, 46648), (56, 45815), (68, 37730), (70, 36652), (77, 33320), (85, 30184), (88, 29155), (98, 26180), (110, 23324), (119, 21560), (136, 18865), (140, 18326), (154, 16660), (170, 15092), (187, 13720), (196, 13090), (220, 11662), (238, 10780), (245, 10472), (280, 9163), (308, 8330), (340, 7546), (343, 7480), (374, 6860), (385, 6664), (392, 6545), (440, 5831), (476, 5390), (490, 5236), (539, 4760), (595, 4312), (616, 4165), (680, 3773), (686, 3740), (748, 3430), (770, 3332), (833, 3080), (935, 2744), (952, 2695), (980, 2618), (1078, 2380), (1190, 2156), (1309, 1960), (1372, 1870), (1496, 1715), (1540, 1666)]