78633880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1$

素因数の和:189

約数の個数: 128

約数和(自身を含む): 201862080

約数和(自身を除く): 123228200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 37, 40, 52, 61, 65, 67, 74, 104, 122, 130, 134, 148, 185, 244, 260, 268, 296, 305, 335, 370, 481, 488, 520, 536, 610, 670, 740, 793, 871, 962, 1220, 1340, 1480, 1586, 1742, 1924, 2257, 2405, 2440, 2479, 2680, 3172, 3484, 3848, 3965, 4087, 4355, 4514, 4810, 4958, 6344, 6968, 7930, 8174, 8710, 9028, 9620, 9916, 11285, 12395, 15860, 16348, 17420, 18056, 19240, 19832, 20435, 22570, 24790, 29341, 31720, 32227, 32696, 34840, 40870, 45140, 49580, 53131, 58682, 64454, 81740, 90280, 99160, 106262, 117364, 128908, 146705, 151219, 161135, 163480, 212524, 234728, 257816, 265655, 293410, 302438, 322270, 425048, 531310, 586820, 604876, 644540, 756095, 1062620, 1173640, 1209752, 1289080, 1512190, 1965847, 2125240, 3024380, 3931694, 6048760, 7863388, 9829235, 15726776, 19658470, 39316940, 78633880]

約数ペア:

[(1, 78633880), (2, 39316940), (4, 19658470), (5, 15726776), (8, 9829235), (10, 7863388), (13, 6048760), (20, 3931694), (26, 3024380), (37, 2125240), (40, 1965847), (52, 1512190), (61, 1289080), (65, 1209752), (67, 1173640), (74, 1062620), (104, 756095), (122, 644540), (130, 604876), (134, 586820), (148, 531310), (185, 425048), (244, 322270), (260, 302438), (268, 293410), (296, 265655), (305, 257816), (335, 234728), (370, 212524), (481, 163480), (488, 161135), (520, 151219), (536, 146705), (610, 128908), (670, 117364), (740, 106262), (793, 99160), (871, 90280), (962, 81740), (1220, 64454), (1340, 58682), (1480, 53131), (1586, 49580), (1742, 45140), (1924, 40870), (2257, 34840), (2405, 32696), (2440, 32227), (2479, 31720), (2680, 29341), (3172, 24790), (3484, 22570), (3848, 20435), (3965, 19832), (4087, 19240), (4355, 18056), (4514, 17420), (4810, 16348), (4958, 15860), (6344, 12395), (6968, 11285), (7930, 9916), (8174, 9620), (8710, 9028)]