257774520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{167}}^1\times {\mathrm{677}}^1$

素因数の和:877

約数の個数: 128

約数和(自身を含む): 820108800

約数和(自身を除く): 562334280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 114, 120, 152, 167, 190, 228, 285, 334, 380, 456, 501, 570, 668, 677, 760, 835, 1002, 1140, 1336, 1354, 1670, 2004, 2031, 2280, 2505, 2708, 3173, 3340, 3385, 4008, 4062, 5010, 5416, 6346, 6680, 6770, 8124, 9519, 10020, 10155, 12692, 12863, 13540, 15865, 16248, 19038, 20040, 20310, 25384, 25726, 27080, 31730, 38076, 38589, 40620, 47595, 51452, 63460, 64315, 76152, 77178, 81240, 95190, 102904, 113059, 126920, 128630, 154356, 190380, 192945, 226118, 257260, 308712, 339177, 380760, 385890, 452236, 514520, 565295, 678354, 771780, 904472, 1130590, 1356708, 1543560, 1695885, 2148121, 2261180, 2713416, 3391770, 4296242, 4522360, 6444363, 6783540, 8592484, 10740605, 12888726, 13567080, 17184968, 21481210, 25777452, 32221815, 42962420, 51554904, 64443630, 85924840, 128887260, 257774520]

約数ペア:

[(1, 257774520), (2, 128887260), (3, 85924840), (4, 64443630), (5, 51554904), (6, 42962420), (8, 32221815), (10, 25777452), (12, 21481210), (15, 17184968), (19, 13567080), (20, 12888726), (24, 10740605), (30, 8592484), (38, 6783540), (40, 6444363), (57, 4522360), (60, 4296242), (76, 3391770), (95, 2713416), (114, 2261180), (120, 2148121), (152, 1695885), (167, 1543560), (190, 1356708), (228, 1130590), (285, 904472), (334, 771780), (380, 678354), (456, 565295), (501, 514520), (570, 452236), (668, 385890), (677, 380760), (760, 339177), (835, 308712), (1002, 257260), (1140, 226118), (1336, 192945), (1354, 190380), (1670, 154356), (2004, 128630), (2031, 126920), (2280, 113059), (2505, 102904), (2708, 95190), (3173, 81240), (3340, 77178), (3385, 76152), (4008, 64315), (4062, 63460), (5010, 51452), (5416, 47595), (6346, 40620), (6680, 38589), (6770, 38076), (8124, 31730), (9519, 27080), (10020, 25726), (10155, 25384), (12692, 20310), (12863, 20040), (13540, 19038), (15865, 16248)]