81042780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{14843}}^1$

素因数の和:14875

約数の個数: 96

約数和(自身を含む): 279304704

約数和(自身を除く): 198261924

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 52, 60, 65, 70, 78, 84, 91, 105, 130, 140, 156, 182, 195, 210, 260, 273, 364, 390, 420, 455, 546, 780, 910, 1092, 1365, 1820, 2730, 5460, 14843, 29686, 44529, 59372, 74215, 89058, 103901, 148430, 178116, 192959, 207802, 222645, 296860, 311703, 385918, 415604, 445290, 519505, 578877, 623406, 771836, 890580, 964795, 1039010, 1157754, 1246812, 1350713, 1558515, 1929590, 2078020, 2315508, 2701426, 2894385, 3117030, 3859180, 4052139, 5402852, 5788770, 6234060, 6753565, 8104278, 11577540, 13507130, 16208556, 20260695, 27014260, 40521390, 81042780]

約数ペア:

[(1, 81042780), (2, 40521390), (3, 27014260), (4, 20260695), (5, 16208556), (6, 13507130), (7, 11577540), (10, 8104278), (12, 6753565), (13, 6234060), (14, 5788770), (15, 5402852), (20, 4052139), (21, 3859180), (26, 3117030), (28, 2894385), (30, 2701426), (35, 2315508), (39, 2078020), (42, 1929590), (52, 1558515), (60, 1350713), (65, 1246812), (70, 1157754), (78, 1039010), (84, 964795), (91, 890580), (105, 771836), (130, 623406), (140, 578877), (156, 519505), (182, 445290), (195, 415604), (210, 385918), (260, 311703), (273, 296860), (364, 222645), (390, 207802), (420, 192959), (455, 178116), (546, 148430), (780, 103901), (910, 89058), (1092, 74215), (1365, 59372), (1820, 44529), (2730, 29686), (5460, 14843)]