18635580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{5449}}^1$

素因数の和:5483

約数の個数: 72

約数和(自身を含む): 59514000

約数和(自身を除く): 40878420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 5449, 10898, 16347, 21796, 27245, 32694, 49041, 54490, 65388, 81735, 98082, 103531, 108980, 163470, 196164, 207062, 245205, 310593, 326940, 414124, 490410, 517655, 621186, 931779, 980820, 1035310, 1242372, 1552965, 1863558, 2070620, 3105930, 3727116, 4658895, 6211860, 9317790, 18635580]

約数ペア:

[(1, 18635580), (2, 9317790), (3, 6211860), (4, 4658895), (5, 3727116), (6, 3105930), (9, 2070620), (10, 1863558), (12, 1552965), (15, 1242372), (18, 1035310), (19, 980820), (20, 931779), (30, 621186), (36, 517655), (38, 490410), (45, 414124), (57, 326940), (60, 310593), (76, 245205), (90, 207062), (95, 196164), (114, 163470), (171, 108980), (180, 103531), (190, 98082), (228, 81735), (285, 65388), (342, 54490), (380, 49041), (570, 32694), (684, 27245), (855, 21796), (1140, 16347), (1710, 10898), (3420, 5449)]