20565543050

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{331}}^1\times {\mathrm{1567}}^1$

素因数の和:1984

約数の個数: 96

約数和(自身を含む): 42022977024

約数和(自身を除く): 21457433974

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 61, 65, 122, 130, 305, 325, 331, 610, 650, 662, 793, 1525, 1567, 1586, 1655, 3050, 3134, 3310, 3965, 4303, 7835, 7930, 8275, 8606, 15670, 16550, 19825, 20191, 20371, 21515, 39175, 39650, 40382, 40742, 43030, 78350, 95587, 100955, 101855, 107575, 191174, 201910, 203710, 215150, 262483, 477935, 504775, 509275, 518677, 524966, 955870, 1009550, 1018550, 1037354, 1242631, 1312415, 2389675, 2485262, 2593385, 2624830, 4779350, 5186770, 6213155, 6562075, 6742801, 12426310, 12966925, 13124150, 13485602, 25933850, 31065775, 31639297, 33714005, 62131550, 63278594, 67428010, 158196485, 168570025, 316392970, 337140050, 411310861, 790982425, 822621722, 1581964850, 2056554305, 4113108610, 10282771525, 20565543050]

約数ペア:

[(1, 20565543050), (2, 10282771525), (5, 4113108610), (10, 2056554305), (13, 1581964850), (25, 822621722), (26, 790982425), (50, 411310861), (61, 337140050), (65, 316392970), (122, 168570025), (130, 158196485), (305, 67428010), (325, 63278594), (331, 62131550), (610, 33714005), (650, 31639297), (662, 31065775), (793, 25933850), (1525, 13485602), (1567, 13124150), (1586, 12966925), (1655, 12426310), (3050, 6742801), (3134, 6562075), (3310, 6213155), (3965, 5186770), (4303, 4779350), (7835, 2624830), (7930, 2593385), (8275, 2485262), (8606, 2389675), (15670, 1312415), (16550, 1242631), (19825, 1037354), (20191, 1018550), (20371, 1009550), (21515, 955870), (39175, 524966), (39650, 518677), (40382, 509275), (40742, 504775), (43030, 477935), (78350, 262483), (95587, 215150), (100955, 203710), (101855, 201910), (107575, 191174)]