20017260

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1951}}^1$

素因数の和:1988

約数の個数: 96

約数和(自身を含む): 65587200

約数和(自身を除く): 45569940

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 27, 30, 36, 38, 45, 54, 57, 60, 76, 90, 95, 108, 114, 135, 171, 180, 190, 228, 270, 285, 342, 380, 513, 540, 570, 684, 855, 1026, 1140, 1710, 1951, 2052, 2565, 3420, 3902, 5130, 5853, 7804, 9755, 10260, 11706, 17559, 19510, 23412, 29265, 35118, 37069, 39020, 52677, 58530, 70236, 74138, 87795, 105354, 111207, 117060, 148276, 175590, 185345, 210708, 222414, 263385, 333621, 351180, 370690, 444828, 526770, 556035, 667242, 741380, 1000863, 1053540, 1112070, 1334484, 1668105, 2001726, 2224140, 3336210, 4003452, 5004315, 6672420, 10008630, 20017260]

約数ペア:

[(1, 20017260), (2, 10008630), (3, 6672420), (4, 5004315), (5, 4003452), (6, 3336210), (9, 2224140), (10, 2001726), (12, 1668105), (15, 1334484), (18, 1112070), (19, 1053540), (20, 1000863), (27, 741380), (30, 667242), (36, 556035), (38, 526770), (45, 444828), (54, 370690), (57, 351180), (60, 333621), (76, 263385), (90, 222414), (95, 210708), (108, 185345), (114, 175590), (135, 148276), (171, 117060), (180, 111207), (190, 105354), (228, 87795), (270, 74138), (285, 70236), (342, 58530), (380, 52677), (513, 39020), (540, 37069), (570, 35118), (684, 29265), (855, 23412), (1026, 19510), (1140, 17559), (1710, 11706), (1951, 10260), (2052, 9755), (2565, 7804), (3420, 5853), (3902, 5130)]