211577015

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{197}}^1$

素因数の和:300

約数の個数: 48

約数和(自身を含む): 292190976

約数和(自身を除く): 80613961

約数列:

[1, 5, 13, 31, 41, 65, 155, 169, 197, 205, 403, 533, 845, 985, 1271, 2015, 2561, 2665, 5239, 6107, 6355, 6929, 8077, 12805, 16523, 26195, 30535, 33293, 34645, 40385, 79391, 82615, 105001, 166465, 214799, 250387, 396955, 525005, 1032083, 1073995, 1251935, 1365013, 3255031, 5160415, 6825065, 16275155, 42315403, 211577015]

約数ペア:

[(1, 211577015), (5, 42315403), (13, 16275155), (31, 6825065), (41, 5160415), (65, 3255031), (155, 1365013), (169, 1251935), (197, 1073995), (205, 1032083), (403, 525005), (533, 396955), (845, 250387), (985, 214799), (1271, 166465), (2015, 105001), (2561, 82615), (2665, 79391), (5239, 40385), (6107, 34645), (6355, 33293), (6929, 30535), (8077, 26195), (12805, 16523)]