207920050

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^2\times {\mathrm{173}}^1$

素因数の和:284

約数の個数: 72

約数和(自身を含む): 428855364

約数和(自身を除く): 220935314

約数列:

[1, 2, 5, 10, 13, 25, 26, 43, 50, 65, 86, 130, 173, 215, 325, 346, 430, 559, 650, 865, 1075, 1118, 1730, 1849, 2150, 2249, 2795, 3698, 4325, 4498, 5590, 7439, 8650, 9245, 11245, 13975, 14878, 18490, 22490, 24037, 27950, 37195, 46225, 48074, 56225, 74390, 92450, 96707, 112450, 120185, 185975, 193414, 240370, 319877, 371950, 483535, 600925, 639754, 967070, 1201850, 1599385, 2417675, 3198770, 4158401, 4835350, 7996925, 8316802, 15993850, 20792005, 41584010, 103960025, 207920050]

約数ペア:

[(1, 207920050), (2, 103960025), (5, 41584010), (10, 20792005), (13, 15993850), (25, 8316802), (26, 7996925), (43, 4835350), (50, 4158401), (65, 3198770), (86, 2417675), (130, 1599385), (173, 1201850), (215, 967070), (325, 639754), (346, 600925), (430, 483535), (559, 371950), (650, 319877), (865, 240370), (1075, 193414), (1118, 185975), (1730, 120185), (1849, 112450), (2150, 96707), (2249, 92450), (2795, 74390), (3698, 56225), (4325, 48074), (4498, 46225), (5590, 37195), (7439, 27950), (8650, 24037), (9245, 22490), (11245, 18490), (13975, 14878)]