19540620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:236

約数の個数: 144

約数和(自身を含む): 66044160

約数和(自身を除く): 46503540

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 71, 90, 99, 110, 132, 139, 142, 165, 180, 198, 213, 220, 278, 284, 330, 355, 396, 417, 426, 495, 556, 639, 660, 695, 710, 781, 834, 852, 990, 1065, 1251, 1278, 1390, 1420, 1529, 1562, 1668, 1980, 2085, 2130, 2343, 2502, 2556, 2780, 3058, 3124, 3195, 3905, 4170, 4260, 4587, 4686, 5004, 6116, 6255, 6390, 7029, 7645, 7810, 8340, 9174, 9372, 9869, 11715, 12510, 12780, 13761, 14058, 15290, 15620, 18348, 19738, 22935, 23430, 25020, 27522, 28116, 29607, 30580, 35145, 39476, 45870, 46860, 49345, 55044, 59214, 68805, 70290, 88821, 91740, 98690, 108559, 118428, 137610, 140580, 148035, 177642, 197380, 217118, 275220, 296070, 325677, 355284, 434236, 444105, 542795, 592140, 651354, 888210, 977031, 1085590, 1302708, 1628385, 1776420, 1954062, 2171180, 3256770, 3908124, 4885155, 6513540, 9770310, 19540620]

約数ペア:

[(1, 19540620), (2, 9770310), (3, 6513540), (4, 4885155), (5, 3908124), (6, 3256770), (9, 2171180), (10, 1954062), (11, 1776420), (12, 1628385), (15, 1302708), (18, 1085590), (20, 977031), (22, 888210), (30, 651354), (33, 592140), (36, 542795), (44, 444105), (45, 434236), (55, 355284), (60, 325677), (66, 296070), (71, 275220), (90, 217118), (99, 197380), (110, 177642), (132, 148035), (139, 140580), (142, 137610), (165, 118428), (180, 108559), (198, 98690), (213, 91740), (220, 88821), (278, 70290), (284, 68805), (330, 59214), (355, 55044), (396, 49345), (417, 46860), (426, 45870), (495, 39476), (556, 35145), (639, 30580), (660, 29607), (695, 28116), (710, 27522), (781, 25020), (834, 23430), (852, 22935), (990, 19738), (1065, 18348), (1251, 15620), (1278, 15290), (1390, 14058), (1420, 13761), (1529, 12780), (1562, 12510), (1668, 11715), (1980, 9869), (2085, 9372), (2130, 9174), (2343, 8340), (2502, 7810), (2556, 7645), (2780, 7029), (3058, 6390), (3124, 6255), (3195, 6116), (3905, 5004), (4170, 4686), (4260, 4587)]