721716615

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{59}}^1\times {\mathrm{251}}^1$

素因数の和:362

約数の個数: 96

約数和(自身を含む): 1382572800

約数和(自身を除く): 660856185

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 59, 95, 135, 171, 177, 251, 285, 295, 361, 513, 531, 753, 855, 885, 1083, 1121, 1255, 1593, 1805, 2259, 2565, 2655, 3249, 3363, 3765, 4769, 5415, 5605, 6777, 7965, 9747, 10089, 11295, 14307, 14809, 16245, 16815, 21299, 23845, 30267, 33885, 42921, 44427, 48735, 50445, 63897, 71535, 74045, 90611, 106495, 128763, 133281, 151335, 191691, 214605, 222135, 271833, 281371, 319485, 399843, 453055, 575073, 643815, 666405, 815499, 844113, 958455, 1359165, 1406855, 1999215, 2446497, 2532339, 2875365, 4077495, 4220565, 5346049, 7597017, 12232485, 12661695, 16038147, 26730245, 37985085, 48114441, 80190735, 144343323, 240572205, 721716615]

約数ペア:

[(1, 721716615), (3, 240572205), (5, 144343323), (9, 80190735), (15, 48114441), (19, 37985085), (27, 26730245), (45, 16038147), (57, 12661695), (59, 12232485), (95, 7597017), (135, 5346049), (171, 4220565), (177, 4077495), (251, 2875365), (285, 2532339), (295, 2446497), (361, 1999215), (513, 1406855), (531, 1359165), (753, 958455), (855, 844113), (885, 815499), (1083, 666405), (1121, 643815), (1255, 575073), (1593, 453055), (1805, 399843), (2259, 319485), (2565, 281371), (2655, 271833), (3249, 222135), (3363, 214605), (3765, 191691), (4769, 151335), (5415, 133281), (5605, 128763), (6777, 106495), (7965, 90611), (9747, 74045), (10089, 71535), (11295, 63897), (14307, 50445), (14809, 48735), (16245, 44427), (16815, 42921), (21299, 33885), (23845, 30267)]