21286560

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{727}}^1$

素因数の和:806

約数の個数: 96

約数和(自身を含む): 68245632

約数和(自身を除く): 46959072

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 61, 80, 96, 120, 122, 160, 183, 240, 244, 305, 366, 480, 488, 610, 727, 732, 915, 976, 1220, 1454, 1464, 1830, 1952, 2181, 2440, 2908, 2928, 3635, 3660, 4362, 4880, 5816, 5856, 7270, 7320, 8724, 9760, 10905, 11632, 14540, 14640, 17448, 21810, 23264, 29080, 29280, 34896, 43620, 44347, 58160, 69792, 87240, 88694, 116320, 133041, 174480, 177388, 221735, 266082, 348960, 354776, 443470, 532164, 665205, 709552, 886940, 1064328, 1330410, 1419104, 1773880, 2128656, 2660820, 3547760, 4257312, 5321640, 7095520, 10643280, 21286560]

約数ペア:

[(1, 21286560), (2, 10643280), (3, 7095520), (4, 5321640), (5, 4257312), (6, 3547760), (8, 2660820), (10, 2128656), (12, 1773880), (15, 1419104), (16, 1330410), (20, 1064328), (24, 886940), (30, 709552), (32, 665205), (40, 532164), (48, 443470), (60, 354776), (61, 348960), (80, 266082), (96, 221735), (120, 177388), (122, 174480), (160, 133041), (183, 116320), (240, 88694), (244, 87240), (305, 69792), (366, 58160), (480, 44347), (488, 43620), (610, 34896), (727, 29280), (732, 29080), (915, 23264), (976, 21810), (1220, 17448), (1454, 14640), (1464, 14540), (1830, 11632), (1952, 10905), (2181, 9760), (2440, 8724), (2908, 7320), (2928, 7270), (3635, 5856), (3660, 5816), (4362, 4880)]