642474885

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{167}}^1\times {\mathrm{181}}^1$

素因数の和:478

約数の個数: 64

約数和(自身を含む): 1130088960

約数和(自身を除く): 487614075

約数列:

[1, 3, 5, 13, 15, 39, 65, 109, 167, 181, 195, 327, 501, 543, 545, 835, 905, 1417, 1635, 2171, 2353, 2505, 2715, 4251, 6513, 7059, 7085, 10855, 11765, 18203, 19729, 21255, 30227, 32565, 35295, 54609, 59187, 90681, 91015, 98645, 151135, 236639, 256477, 273045, 295935, 392951, 453405, 709917, 769431, 1178853, 1183195, 1282385, 1964755, 3294743, 3549585, 3847155, 5894265, 9884229, 16473715, 42831659, 49421145, 128494977, 214158295, 642474885]

約数ペア:

[(1, 642474885), (3, 214158295), (5, 128494977), (13, 49421145), (15, 42831659), (39, 16473715), (65, 9884229), (109, 5894265), (167, 3847155), (181, 3549585), (195, 3294743), (327, 1964755), (501, 1282385), (543, 1183195), (545, 1178853), (835, 769431), (905, 709917), (1417, 453405), (1635, 392951), (2171, 295935), (2353, 273045), (2505, 256477), (2715, 236639), (4251, 151135), (6513, 98645), (7059, 91015), (7085, 90681), (10855, 59187), (11765, 54609), (18203, 35295), (19729, 32565), (21255, 30227)]