18781620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{199}}^1$

素因数の和:246

約数の個数: 144

約数和(自身を含む): 62563200

約数和(自身を除く): 43781580

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 13, 15, 20, 22, 26, 30, 33, 39, 44, 52, 55, 60, 65, 66, 78, 110, 121, 130, 132, 143, 156, 165, 195, 199, 220, 242, 260, 286, 330, 363, 390, 398, 429, 484, 572, 597, 605, 660, 715, 726, 780, 796, 858, 995, 1194, 1210, 1430, 1452, 1573, 1716, 1815, 1990, 2145, 2189, 2388, 2420, 2587, 2860, 2985, 3146, 3630, 3980, 4290, 4378, 4719, 5174, 5970, 6292, 6567, 7260, 7761, 7865, 8580, 8756, 9438, 10348, 10945, 11940, 12935, 13134, 15522, 15730, 18876, 21890, 23595, 24079, 25870, 26268, 28457, 31044, 31460, 32835, 38805, 43780, 47190, 48158, 51740, 56914, 65670, 72237, 77610, 85371, 94380, 96316, 113828, 120395, 131340, 142285, 144474, 155220, 170742, 240790, 284570, 288948, 313027, 341484, 361185, 426855, 481580, 569140, 626054, 722370, 853710, 939081, 1252108, 1444740, 1565135, 1707420, 1878162, 3130270, 3756324, 4695405, 6260540, 9390810, 18781620]

約数ペア:

[(1, 18781620), (2, 9390810), (3, 6260540), (4, 4695405), (5, 3756324), (6, 3130270), (10, 1878162), (11, 1707420), (12, 1565135), (13, 1444740), (15, 1252108), (20, 939081), (22, 853710), (26, 722370), (30, 626054), (33, 569140), (39, 481580), (44, 426855), (52, 361185), (55, 341484), (60, 313027), (65, 288948), (66, 284570), (78, 240790), (110, 170742), (121, 155220), (130, 144474), (132, 142285), (143, 131340), (156, 120395), (165, 113828), (195, 96316), (199, 94380), (220, 85371), (242, 77610), (260, 72237), (286, 65670), (330, 56914), (363, 51740), (390, 48158), (398, 47190), (429, 43780), (484, 38805), (572, 32835), (597, 31460), (605, 31044), (660, 28457), (715, 26268), (726, 25870), (780, 24079), (796, 23595), (858, 21890), (995, 18876), (1194, 15730), (1210, 15522), (1430, 13134), (1452, 12935), (1573, 11940), (1716, 10945), (1815, 10348), (1990, 9438), (2145, 8756), (2189, 8580), (2388, 7865), (2420, 7761), (2587, 7260), (2860, 6567), (2985, 6292), (3146, 5970), (3630, 5174), (3980, 4719), (4290, 4378)]