19754486440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{622777}}^1$

素因数の和:622862

約数の個数: 64

約数和(自身を含む): 48651417360

約数和(自身を除く): 28896930920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 61, 65, 104, 122, 130, 244, 260, 305, 488, 520, 610, 793, 1220, 1586, 2440, 3172, 3965, 6344, 7930, 15860, 31720, 622777, 1245554, 2491108, 3113885, 4982216, 6227770, 8096101, 12455540, 16192202, 24911080, 32384404, 37989397, 40480505, 64768808, 75978794, 80961010, 151957588, 161922020, 189946985, 303915176, 323844040, 379893970, 493862161, 759787940, 987724322, 1519575880, 1975448644, 2469310805, 3950897288, 4938621610, 9877243220, 19754486440]

約数ペア:

[(1, 19754486440), (2, 9877243220), (4, 4938621610), (5, 3950897288), (8, 2469310805), (10, 1975448644), (13, 1519575880), (20, 987724322), (26, 759787940), (40, 493862161), (52, 379893970), (61, 323844040), (65, 303915176), (104, 189946985), (122, 161922020), (130, 151957588), (244, 80961010), (260, 75978794), (305, 64768808), (488, 40480505), (520, 37989397), (610, 32384404), (793, 24911080), (1220, 16192202), (1586, 12455540), (2440, 8096101), (3172, 6227770), (3965, 4982216), (6344, 3113885), (7930, 2491108), (15860, 1245554), (31720, 622777)]