20194860

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{6869}}^1$

素因数の和:6895

約数の個数: 72

約数和(自身を含む): 65787120

約数和(自身を除く): 45592260

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 6869, 13738, 20607, 27476, 34345, 41214, 48083, 68690, 82428, 96166, 103035, 137380, 144249, 192332, 206070, 240415, 288498, 336581, 412140, 480830, 576996, 673162, 721245, 961660, 1009743, 1346324, 1442490, 1682905, 2019486, 2884980, 3365810, 4038972, 5048715, 6731620, 10097430, 20194860]

約数ペア:

[(1, 20194860), (2, 10097430), (3, 6731620), (4, 5048715), (5, 4038972), (6, 3365810), (7, 2884980), (10, 2019486), (12, 1682905), (14, 1442490), (15, 1346324), (20, 1009743), (21, 961660), (28, 721245), (30, 673162), (35, 576996), (42, 480830), (49, 412140), (60, 336581), (70, 288498), (84, 240415), (98, 206070), (105, 192332), (140, 144249), (147, 137380), (196, 103035), (210, 96166), (245, 82428), (294, 68690), (420, 48083), (490, 41214), (588, 34345), (735, 27476), (980, 20607), (1470, 13738), (2940, 6869)]