400991280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{18773}}^1$

素因数の和:18878

約数の個数: 80

約数和(自身を含む): 1257107040

約数和(自身を除く): 856115760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 89, 120, 178, 240, 267, 356, 445, 534, 712, 890, 1068, 1335, 1424, 1780, 2136, 2670, 3560, 4272, 5340, 7120, 10680, 18773, 21360, 37546, 56319, 75092, 93865, 112638, 150184, 187730, 225276, 281595, 300368, 375460, 450552, 563190, 750920, 901104, 1126380, 1501840, 1670797, 2252760, 3341594, 4505520, 5012391, 6683188, 8353985, 10024782, 13366376, 16707970, 20049564, 25061955, 26732752, 33415940, 40099128, 50123910, 66831880, 80198256, 100247820, 133663760, 200495640, 400991280]

約数ペア:

[(1, 400991280), (2, 200495640), (3, 133663760), (4, 100247820), (5, 80198256), (6, 66831880), (8, 50123910), (10, 40099128), (12, 33415940), (15, 26732752), (16, 25061955), (20, 20049564), (24, 16707970), (30, 13366376), (40, 10024782), (48, 8353985), (60, 6683188), (80, 5012391), (89, 4505520), (120, 3341594), (178, 2252760), (240, 1670797), (267, 1501840), (356, 1126380), (445, 901104), (534, 750920), (712, 563190), (890, 450552), (1068, 375460), (1335, 300368), (1424, 281595), (1780, 225276), (2136, 187730), (2670, 150184), (3560, 112638), (4272, 93865), (5340, 75092), (7120, 56319), (10680, 37546), (18773, 21360)]