20019540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1033}}^1$

素因数の和:1081

約数の個数: 96

約数和(自身を含む): 62536320

約数和(自身を除く): 42516780

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 19, 20, 30, 34, 38, 51, 57, 60, 68, 76, 85, 95, 102, 114, 170, 190, 204, 228, 255, 285, 323, 340, 380, 510, 570, 646, 969, 1020, 1033, 1140, 1292, 1615, 1938, 2066, 3099, 3230, 3876, 4132, 4845, 5165, 6198, 6460, 9690, 10330, 12396, 15495, 17561, 19380, 19627, 20660, 30990, 35122, 39254, 52683, 58881, 61980, 70244, 78508, 87805, 98135, 105366, 117762, 175610, 196270, 210732, 235524, 263415, 294405, 333659, 351220, 392540, 526830, 588810, 667318, 1000977, 1053660, 1177620, 1334636, 1668295, 2001954, 3336590, 4003908, 5004885, 6673180, 10009770, 20019540]

約数ペア:

[(1, 20019540), (2, 10009770), (3, 6673180), (4, 5004885), (5, 4003908), (6, 3336590), (10, 2001954), (12, 1668295), (15, 1334636), (17, 1177620), (19, 1053660), (20, 1000977), (30, 667318), (34, 588810), (38, 526830), (51, 392540), (57, 351220), (60, 333659), (68, 294405), (76, 263415), (85, 235524), (95, 210732), (102, 196270), (114, 175610), (170, 117762), (190, 105366), (204, 98135), (228, 87805), (255, 78508), (285, 70244), (323, 61980), (340, 58881), (380, 52683), (510, 39254), (570, 35122), (646, 30990), (969, 20660), (1020, 19627), (1033, 19380), (1140, 17561), (1292, 15495), (1615, 12396), (1938, 10330), (2066, 9690), (3099, 6460), (3230, 6198), (3876, 5165), (4132, 4845)]