81350795320

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{311}}^1\times {\mathrm{73477}}^1$

素因数の和:73888

約数の個数: 64

約数和(自身を含む): 185693601600

約数和(自身を除く): 104342806280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 311, 356, 445, 622, 712, 890, 1244, 1555, 1780, 2488, 3110, 3560, 6220, 12440, 27679, 55358, 73477, 110716, 138395, 146954, 221432, 276790, 293908, 367385, 553580, 587816, 734770, 1107160, 1469540, 2939080, 6539453, 13078906, 22851347, 26157812, 32697265, 45702694, 52315624, 65394530, 91405388, 114256735, 130789060, 182810776, 228513470, 261578120, 457026940, 914053880, 2033769883, 4067539766, 8135079532, 10168849415, 16270159064, 20337698830, 40675397660, 81350795320]

約数ペア:

[(1, 81350795320), (2, 40675397660), (4, 20337698830), (5, 16270159064), (8, 10168849415), (10, 8135079532), (20, 4067539766), (40, 2033769883), (89, 914053880), (178, 457026940), (311, 261578120), (356, 228513470), (445, 182810776), (622, 130789060), (712, 114256735), (890, 91405388), (1244, 65394530), (1555, 52315624), (1780, 45702694), (2488, 32697265), (3110, 26157812), (3560, 22851347), (6220, 13078906), (12440, 6539453), (27679, 2939080), (55358, 1469540), (73477, 1107160), (110716, 734770), (138395, 587816), (146954, 553580), (221432, 367385), (276790, 293908)]