71721780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{91951}}^1$

素因数の和:91976

約数の個数: 48

約数和(自身を含む): 216271104

約数和(自身を除く): 144549324

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 91951, 183902, 275853, 367804, 459755, 551706, 919510, 1103412, 1195363, 1379265, 1839020, 2390726, 2758530, 3586089, 4781452, 5517060, 5976815, 7172178, 11953630, 14344356, 17930445, 23907260, 35860890, 71721780]

約数ペア:

[(1, 71721780), (2, 35860890), (3, 23907260), (4, 17930445), (5, 14344356), (6, 11953630), (10, 7172178), (12, 5976815), (13, 5517060), (15, 4781452), (20, 3586089), (26, 2758530), (30, 2390726), (39, 1839020), (52, 1379265), (60, 1195363), (65, 1103412), (78, 919510), (130, 551706), (156, 459755), (195, 367804), (260, 275853), (390, 183902), (780, 91951)]