71581900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1$

素因数の和:164

約数の個数: 144

約数和(自身を含む): 183738240

約数和(自身を除く): 112156340

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 25, 26, 34, 41, 50, 52, 65, 68, 79, 82, 85, 100, 130, 158, 164, 170, 205, 221, 260, 316, 325, 340, 395, 410, 425, 442, 533, 650, 697, 790, 820, 850, 884, 1025, 1027, 1066, 1105, 1300, 1343, 1394, 1580, 1700, 1975, 2050, 2054, 2132, 2210, 2665, 2686, 2788, 3239, 3485, 3950, 4100, 4108, 4420, 5135, 5330, 5372, 5525, 6478, 6715, 6970, 7900, 9061, 10270, 10660, 11050, 12956, 13325, 13430, 13940, 16195, 17425, 17459, 18122, 20540, 22100, 25675, 26650, 26860, 32390, 33575, 34850, 34918, 36244, 42107, 45305, 51350, 53300, 55063, 64780, 67150, 69700, 69836, 80975, 84214, 87295, 90610, 102700, 110126, 134300, 161950, 168428, 174590, 181220, 210535, 220252, 226525, 275315, 323900, 349180, 421070, 436475, 453050, 550630, 715819, 842140, 872950, 906100, 1052675, 1101260, 1376575, 1431638, 1745900, 2105350, 2753150, 2863276, 3579095, 4210700, 5506300, 7158190, 14316380, 17895475, 35790950, 71581900]

約数ペア:

[(1, 71581900), (2, 35790950), (4, 17895475), (5, 14316380), (10, 7158190), (13, 5506300), (17, 4210700), (20, 3579095), (25, 2863276), (26, 2753150), (34, 2105350), (41, 1745900), (50, 1431638), (52, 1376575), (65, 1101260), (68, 1052675), (79, 906100), (82, 872950), (85, 842140), (100, 715819), (130, 550630), (158, 453050), (164, 436475), (170, 421070), (205, 349180), (221, 323900), (260, 275315), (316, 226525), (325, 220252), (340, 210535), (395, 181220), (410, 174590), (425, 168428), (442, 161950), (533, 134300), (650, 110126), (697, 102700), (790, 90610), (820, 87295), (850, 84214), (884, 80975), (1025, 69836), (1027, 69700), (1066, 67150), (1105, 64780), (1300, 55063), (1343, 53300), (1394, 51350), (1580, 45305), (1700, 42107), (1975, 36244), (2050, 34918), (2054, 34850), (2132, 33575), (2210, 32390), (2665, 26860), (2686, 26650), (2788, 25675), (3239, 22100), (3485, 20540), (3950, 18122), (4100, 17459), (4108, 17425), (4420, 16195), (5135, 13940), (5330, 13430), (5372, 13325), (5525, 12956), (6478, 11050), (6715, 10660), (6970, 10270), (7900, 9061)]