2080493080

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{39019}}^1$

素因数の和:39104

約数の個数: 64

約数和(自身を含む): 4944614400

約数和(自身を除く): 2864121320

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 43, 62, 86, 124, 155, 172, 215, 248, 310, 344, 430, 620, 860, 1240, 1333, 1720, 2666, 5332, 6665, 10664, 13330, 26660, 39019, 53320, 78038, 156076, 195095, 312152, 390190, 780380, 1209589, 1560760, 1677817, 2419178, 3355634, 4838356, 6047945, 6711268, 8389085, 9676712, 12095890, 13422536, 16778170, 24191780, 33556340, 48383560, 52012327, 67112680, 104024654, 208049308, 260061635, 416098616, 520123270, 1040246540, 2080493080]

約数ペア:

[(1, 2080493080), (2, 1040246540), (4, 520123270), (5, 416098616), (8, 260061635), (10, 208049308), (20, 104024654), (31, 67112680), (40, 52012327), (43, 48383560), (62, 33556340), (86, 24191780), (124, 16778170), (155, 13422536), (172, 12095890), (215, 9676712), (248, 8389085), (310, 6711268), (344, 6047945), (430, 4838356), (620, 3355634), (860, 2419178), (1240, 1677817), (1333, 1560760), (1720, 1209589), (2666, 780380), (5332, 390190), (6665, 312152), (10664, 195095), (13330, 156076), (26660, 78038), (39019, 53320)]