21359760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1459}}^1$

素因数の和:1536

約数の個数: 80

約数和(自身を含む): 67346880

約数和(自身を除く): 45987120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 61, 80, 120, 122, 183, 240, 244, 305, 366, 488, 610, 732, 915, 976, 1220, 1459, 1464, 1830, 2440, 2918, 2928, 3660, 4377, 4880, 5836, 7295, 7320, 8754, 11672, 14590, 14640, 17508, 21885, 23344, 29180, 35016, 43770, 58360, 70032, 87540, 88999, 116720, 175080, 177998, 266997, 350160, 355996, 444995, 533994, 711992, 889990, 1067988, 1334985, 1423984, 1779980, 2135976, 2669970, 3559960, 4271952, 5339940, 7119920, 10679880, 21359760]

約数ペア:

[(1, 21359760), (2, 10679880), (3, 7119920), (4, 5339940), (5, 4271952), (6, 3559960), (8, 2669970), (10, 2135976), (12, 1779980), (15, 1423984), (16, 1334985), (20, 1067988), (24, 889990), (30, 711992), (40, 533994), (48, 444995), (60, 355996), (61, 350160), (80, 266997), (120, 177998), (122, 175080), (183, 116720), (240, 88999), (244, 87540), (305, 70032), (366, 58360), (488, 43770), (610, 35016), (732, 29180), (915, 23344), (976, 21885), (1220, 17508), (1459, 14640), (1464, 14590), (1830, 11672), (2440, 8754), (2918, 7320), (2928, 7295), (3660, 5836), (4377, 4880)]