1220878620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{521743}}^1$

素因数の和:521771

約数の個数: 72

約数和(自身を含む): 3988211136

約数和(自身を除く): 2767332516

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 521743, 1043486, 1565229, 2086972, 2608715, 3130458, 4695687, 5217430, 6260916, 6782659, 7826145, 9391374, 10434860, 13565318, 15652290, 18782748, 20347977, 23478435, 27130636, 31304580, 33913295, 40695954, 46956870, 61043931, 67826590, 81391908, 93913740, 101739885, 122087862, 135653180, 203479770, 244175724, 305219655, 406959540, 610439310, 1220878620]

約数ペア:

[(1, 1220878620), (2, 610439310), (3, 406959540), (4, 305219655), (5, 244175724), (6, 203479770), (9, 135653180), (10, 122087862), (12, 101739885), (13, 93913740), (15, 81391908), (18, 67826590), (20, 61043931), (26, 46956870), (30, 40695954), (36, 33913295), (39, 31304580), (45, 27130636), (52, 23478435), (60, 20347977), (65, 18782748), (78, 15652290), (90, 13565318), (117, 10434860), (130, 9391374), (156, 7826145), (180, 6782659), (195, 6260916), (234, 5217430), (260, 4695687), (390, 3130458), (468, 2608715), (585, 2086972), (780, 1565229), (1170, 1043486), (2340, 521743)]