205808520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{709}}^1$

素因数の和:823

約数の個数: 128

約数和(自身を含む): 644112000

約数和(自身を除く): 438303480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 41, 59, 60, 82, 118, 120, 123, 164, 177, 205, 236, 246, 295, 328, 354, 410, 472, 492, 590, 615, 708, 709, 820, 885, 984, 1180, 1230, 1416, 1418, 1640, 1770, 2127, 2360, 2419, 2460, 2836, 3540, 3545, 4254, 4838, 4920, 5672, 7080, 7090, 7257, 8508, 9676, 10635, 12095, 14180, 14514, 17016, 19352, 21270, 24190, 28360, 29028, 29069, 36285, 41831, 42540, 48380, 58056, 58138, 72570, 83662, 85080, 87207, 96760, 116276, 125493, 145140, 145345, 167324, 174414, 209155, 232552, 250986, 290280, 290690, 334648, 348828, 418310, 436035, 501972, 581380, 627465, 697656, 836620, 872070, 1003944, 1162760, 1254930, 1673240, 1715071, 1744140, 2509860, 3430142, 3488280, 5019720, 5145213, 6860284, 8575355, 10290426, 13720568, 17150710, 20580852, 25726065, 34301420, 41161704, 51452130, 68602840, 102904260, 205808520]

約数ペア:

[(1, 205808520), (2, 102904260), (3, 68602840), (4, 51452130), (5, 41161704), (6, 34301420), (8, 25726065), (10, 20580852), (12, 17150710), (15, 13720568), (20, 10290426), (24, 8575355), (30, 6860284), (40, 5145213), (41, 5019720), (59, 3488280), (60, 3430142), (82, 2509860), (118, 1744140), (120, 1715071), (123, 1673240), (164, 1254930), (177, 1162760), (205, 1003944), (236, 872070), (246, 836620), (295, 697656), (328, 627465), (354, 581380), (410, 501972), (472, 436035), (492, 418310), (590, 348828), (615, 334648), (708, 290690), (709, 290280), (820, 250986), (885, 232552), (984, 209155), (1180, 174414), (1230, 167324), (1416, 145345), (1418, 145140), (1640, 125493), (1770, 116276), (2127, 96760), (2360, 87207), (2419, 85080), (2460, 83662), (2836, 72570), (3540, 58138), (3545, 58056), (4254, 48380), (4838, 42540), (4920, 41831), (5672, 36285), (7080, 29069), (7090, 29028), (7257, 28360), (8508, 24190), (9676, 21270), (10635, 19352), (12095, 17016), (14180, 14514)]