19666620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{6427}}^1$

素因数の和:6459

約数の個数: 72

約数和(自身を含む): 63174384

約数和(自身を除く): 43507764

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 85, 90, 102, 153, 170, 180, 204, 255, 306, 340, 510, 612, 765, 1020, 1530, 3060, 6427, 12854, 19281, 25708, 32135, 38562, 57843, 64270, 77124, 96405, 109259, 115686, 128540, 192810, 218518, 231372, 289215, 327777, 385620, 437036, 546295, 578430, 655554, 983331, 1092590, 1156860, 1311108, 1638885, 1966662, 2185180, 3277770, 3933324, 4916655, 6555540, 9833310, 19666620]

約数ペア:

[(1, 19666620), (2, 9833310), (3, 6555540), (4, 4916655), (5, 3933324), (6, 3277770), (9, 2185180), (10, 1966662), (12, 1638885), (15, 1311108), (17, 1156860), (18, 1092590), (20, 983331), (30, 655554), (34, 578430), (36, 546295), (45, 437036), (51, 385620), (60, 327777), (68, 289215), (85, 231372), (90, 218518), (102, 192810), (153, 128540), (170, 115686), (180, 109259), (204, 96405), (255, 77124), (306, 64270), (340, 57843), (510, 38562), (612, 32135), (765, 25708), (1020, 19281), (1530, 12854), (3060, 6427)]