78540228

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{653}}^1$

素因数の和:933

約数の個数: 72

約数和(自身を含む): 214964568

約数和(自身を除く): 136424340

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 257, 468, 514, 653, 771, 1028, 1306, 1542, 1959, 2313, 2612, 3084, 3341, 3918, 4626, 5877, 6682, 7836, 8489, 9252, 10023, 11754, 13364, 16978, 20046, 23508, 25467, 30069, 33956, 40092, 50934, 60138, 76401, 101868, 120276, 152802, 167821, 305604, 335642, 503463, 671284, 1006926, 1510389, 2013852, 2181673, 3020778, 4363346, 6041556, 6545019, 8726692, 13090038, 19635057, 26180076, 39270114, 78540228]

約数ペア:

[(1, 78540228), (2, 39270114), (3, 26180076), (4, 19635057), (6, 13090038), (9, 8726692), (12, 6545019), (13, 6041556), (18, 4363346), (26, 3020778), (36, 2181673), (39, 2013852), (52, 1510389), (78, 1006926), (117, 671284), (156, 503463), (234, 335642), (257, 305604), (468, 167821), (514, 152802), (653, 120276), (771, 101868), (1028, 76401), (1306, 60138), (1542, 50934), (1959, 40092), (2313, 33956), (2612, 30069), (3084, 25467), (3341, 23508), (3918, 20046), (4626, 16978), (5877, 13364), (6682, 11754), (7836, 10023), (8489, 9252)]