1780740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{761}}^1$

素因数の和:789

約数の個数: 72

約数和(自身を含む): 5824728

約数和(自身を除く): 4043988

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, 761, 780, 1170, 1522, 2283, 2340, 3044, 3805, 4566, 6849, 7610, 9132, 9893, 11415, 13698, 15220, 19786, 22830, 27396, 29679, 34245, 39572, 45660, 49465, 59358, 68490, 89037, 98930, 118716, 136980, 148395, 178074, 197860, 296790, 356148, 445185, 593580, 890370, 1780740]

約数ペア:

[(1, 1780740), (2, 890370), (3, 593580), (4, 445185), (5, 356148), (6, 296790), (9, 197860), (10, 178074), (12, 148395), (13, 136980), (15, 118716), (18, 98930), (20, 89037), (26, 68490), (30, 59358), (36, 49465), (39, 45660), (45, 39572), (52, 34245), (60, 29679), (65, 27396), (78, 22830), (90, 19786), (117, 15220), (130, 13698), (156, 11415), (180, 9893), (195, 9132), (234, 7610), (260, 6849), (390, 4566), (468, 3805), (585, 3044), (761, 2340), (780, 2283), (1170, 1522)]