18017860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:173

約数の個数: 96

約数和(自身を含む): 45948672

約数和(自身を除く): 27930812

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 43, 70, 73, 82, 86, 140, 146, 164, 172, 205, 215, 287, 292, 301, 365, 410, 430, 511, 574, 602, 730, 820, 860, 1022, 1148, 1204, 1435, 1460, 1505, 1763, 2044, 2555, 2870, 2993, 3010, 3139, 3526, 5110, 5740, 5986, 6020, 6278, 7052, 8815, 10220, 11972, 12341, 12556, 14965, 15695, 17630, 20951, 21973, 24682, 29930, 31390, 35260, 41902, 43946, 49364, 59860, 61705, 62780, 83804, 87892, 104755, 109865, 123410, 128699, 209510, 219730, 246820, 257398, 419020, 439460, 514796, 643495, 900893, 1286990, 1801786, 2573980, 3603572, 4504465, 9008930, 18017860]

約数ペア:

[(1, 18017860), (2, 9008930), (4, 4504465), (5, 3603572), (7, 2573980), (10, 1801786), (14, 1286990), (20, 900893), (28, 643495), (35, 514796), (41, 439460), (43, 419020), (70, 257398), (73, 246820), (82, 219730), (86, 209510), (140, 128699), (146, 123410), (164, 109865), (172, 104755), (205, 87892), (215, 83804), (287, 62780), (292, 61705), (301, 59860), (365, 49364), (410, 43946), (430, 41902), (511, 35260), (574, 31390), (602, 29930), (730, 24682), (820, 21973), (860, 20951), (1022, 17630), (1148, 15695), (1204, 14965), (1435, 12556), (1460, 12341), (1505, 11972), (1763, 10220), (2044, 8815), (2555, 7052), (2870, 6278), (2993, 6020), (3010, 5986), (3139, 5740), (3526, 5110)]