640846050

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{328639}}^1$

素因数の和:328667

約数の個数: 48

約数和(自身を含む): 1711557120

約数和(自身を除く): 1070711070

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 65, 75, 78, 130, 150, 195, 325, 390, 650, 975, 1950, 328639, 657278, 985917, 1643195, 1971834, 3286390, 4272307, 4929585, 8215975, 8544614, 9859170, 12816921, 16431950, 21361535, 24647925, 25633842, 42723070, 49295850, 64084605, 106807675, 128169210, 213615350, 320423025, 640846050]

約数ペア:

[(1, 640846050), (2, 320423025), (3, 213615350), (5, 128169210), (6, 106807675), (10, 64084605), (13, 49295850), (15, 42723070), (25, 25633842), (26, 24647925), (30, 21361535), (39, 16431950), (50, 12816921), (65, 9859170), (75, 8544614), (78, 8215975), (130, 4929585), (150, 4272307), (195, 3286390), (325, 1971834), (390, 1643195), (650, 985917), (975, 657278), (1950, 328639)]