128007420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^2\times {\mathrm{37}}^1\times {\mathrm{109}}^1$

素因数の和:204

約数の個数: 144

約数和(自身を含む): 388338720

約数和(自身を除く): 260331300

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 37, 46, 60, 69, 74, 92, 109, 111, 115, 138, 148, 185, 218, 222, 230, 276, 327, 345, 370, 436, 444, 460, 529, 545, 555, 654, 690, 740, 851, 1058, 1090, 1110, 1308, 1380, 1587, 1635, 1702, 2116, 2180, 2220, 2507, 2553, 2645, 3174, 3270, 3404, 4033, 4255, 5014, 5106, 5290, 6348, 6540, 7521, 7935, 8066, 8510, 10028, 10212, 10580, 12099, 12535, 12765, 15042, 15870, 16132, 17020, 19573, 20165, 24198, 25070, 25530, 30084, 31740, 37605, 39146, 40330, 48396, 50140, 51060, 57661, 58719, 60495, 75210, 78292, 80660, 92759, 97865, 115322, 117438, 120990, 150420, 172983, 185518, 195730, 230644, 234876, 241980, 278277, 288305, 293595, 345966, 371036, 391460, 463795, 556554, 576610, 587190, 691932, 864915, 927590, 1113108, 1153220, 1174380, 1391385, 1729830, 1855180, 2133457, 2782770, 3459660, 4266914, 5565540, 6400371, 8533828, 10667285, 12800742, 21334570, 25601484, 32001855, 42669140, 64003710, 128007420]

約数ペア:

[(1, 128007420), (2, 64003710), (3, 42669140), (4, 32001855), (5, 25601484), (6, 21334570), (10, 12800742), (12, 10667285), (15, 8533828), (20, 6400371), (23, 5565540), (30, 4266914), (37, 3459660), (46, 2782770), (60, 2133457), (69, 1855180), (74, 1729830), (92, 1391385), (109, 1174380), (111, 1153220), (115, 1113108), (138, 927590), (148, 864915), (185, 691932), (218, 587190), (222, 576610), (230, 556554), (276, 463795), (327, 391460), (345, 371036), (370, 345966), (436, 293595), (444, 288305), (460, 278277), (529, 241980), (545, 234876), (555, 230644), (654, 195730), (690, 185518), (740, 172983), (851, 150420), (1058, 120990), (1090, 117438), (1110, 115322), (1308, 97865), (1380, 92759), (1587, 80660), (1635, 78292), (1702, 75210), (2116, 60495), (2180, 58719), (2220, 57661), (2507, 51060), (2553, 50140), (2645, 48396), (3174, 40330), (3270, 39146), (3404, 37605), (4033, 31740), (4255, 30084), (5014, 25530), (5106, 25070), (5290, 24198), (6348, 20165), (6540, 19573), (7521, 17020), (7935, 16132), (8066, 15870), (8510, 15042), (10028, 12765), (10212, 12535), (10580, 12099)]