19647453956

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{359}}^1\times {\mathrm{4261}}^1$

素因数の和:4669

約数の個数: 72

約数和(自身を含む): 39309278400

約数和(自身を除く): 19661824444

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 169, 247, 338, 359, 494, 676, 718, 988, 1436, 3211, 4261, 4667, 6422, 6821, 8522, 9334, 12844, 13642, 17044, 18668, 27284, 55393, 60671, 80959, 88673, 110786, 121342, 161918, 177346, 221572, 242684, 323836, 354692, 720109, 1052467, 1152749, 1440218, 1529699, 2104934, 2305498, 2880436, 3059398, 4209868, 4610996, 6118796, 13682071, 19886087, 27364142, 29064281, 39772174, 54728284, 58128562, 79544348, 116257124, 258519131, 377835653, 517038262, 755671306, 1034076524, 1511342612, 4911863489, 9823726978, 19647453956]

約数ペア:

[(1, 19647453956), (2, 9823726978), (4, 4911863489), (13, 1511342612), (19, 1034076524), (26, 755671306), (38, 517038262), (52, 377835653), (76, 258519131), (169, 116257124), (247, 79544348), (338, 58128562), (359, 54728284), (494, 39772174), (676, 29064281), (718, 27364142), (988, 19886087), (1436, 13682071), (3211, 6118796), (4261, 4610996), (4667, 4209868), (6422, 3059398), (6821, 2880436), (8522, 2305498), (9334, 2104934), (12844, 1529699), (13642, 1440218), (17044, 1152749), (18668, 1052467), (27284, 720109), (55393, 354692), (60671, 323836), (80959, 242684), (88673, 221572), (110786, 177346), (121342, 161918)]