259014920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{2347}}^1$

素因数の和:2478

約数の個数: 64

約数和(自身を含む): 608601600

約数和(自身を除く): 349586680

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 89, 124, 155, 178, 248, 310, 356, 445, 620, 712, 890, 1240, 1780, 2347, 2759, 3560, 4694, 5518, 9388, 11036, 11735, 13795, 18776, 22072, 23470, 27590, 46940, 55180, 72757, 93880, 110360, 145514, 208883, 291028, 363785, 417766, 582056, 727570, 835532, 1044415, 1455140, 1671064, 2088830, 2910280, 4177660, 6475373, 8355320, 12950746, 25901492, 32376865, 51802984, 64753730, 129507460, 259014920]

約数ペア:

[(1, 259014920), (2, 129507460), (4, 64753730), (5, 51802984), (8, 32376865), (10, 25901492), (20, 12950746), (31, 8355320), (40, 6475373), (62, 4177660), (89, 2910280), (124, 2088830), (155, 1671064), (178, 1455140), (248, 1044415), (310, 835532), (356, 727570), (445, 582056), (620, 417766), (712, 363785), (890, 291028), (1240, 208883), (1780, 145514), (2347, 110360), (2759, 93880), (3560, 72757), (4694, 55180), (5518, 46940), (9388, 27590), (11036, 23470), (11735, 22072), (13795, 18776)]