19955142470

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{2039}}^1\times {\mathrm{2503}}^1$

素因数の和:4589

約数の個数: 64

約数和(自身を含む): 39721052160

約数和(自身を除く): 19765909690

約数列:

[1, 2, 5, 10, 17, 23, 34, 46, 85, 115, 170, 230, 391, 782, 1955, 2039, 2503, 3910, 4078, 5006, 10195, 12515, 20390, 25030, 34663, 42551, 46897, 57569, 69326, 85102, 93794, 115138, 173315, 212755, 234485, 287845, 346630, 425510, 468970, 575690, 797249, 978673, 1594498, 1957346, 3986245, 4893365, 5103617, 7972490, 9786730, 10207234, 25518085, 51036170, 86761489, 117383191, 173522978, 234766382, 433807445, 586915955, 867614890, 1173831910, 1995514247, 3991028494, 9977571235, 19955142470]

約数ペア:

[(1, 19955142470), (2, 9977571235), (5, 3991028494), (10, 1995514247), (17, 1173831910), (23, 867614890), (34, 586915955), (46, 433807445), (85, 234766382), (115, 173522978), (170, 117383191), (230, 86761489), (391, 51036170), (782, 25518085), (1955, 10207234), (2039, 9786730), (2503, 7972490), (3910, 5103617), (4078, 4893365), (5006, 3986245), (10195, 1957346), (12515, 1594498), (20390, 978673), (25030, 797249), (34663, 575690), (42551, 468970), (46897, 425510), (57569, 346630), (69326, 287845), (85102, 234485), (93794, 212755), (115138, 173315)]