641795140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{15973}}^1$

素因数の和:16037

約数の個数: 72

約数和(自身を含む): 1606153752

約数和(自身を除く): 964358612

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 49, 70, 82, 98, 140, 164, 196, 205, 245, 287, 410, 490, 574, 820, 980, 1148, 1435, 2009, 2870, 4018, 5740, 8036, 10045, 15973, 20090, 31946, 40180, 63892, 79865, 111811, 159730, 223622, 319460, 447244, 559055, 654893, 782677, 1118110, 1309786, 1565354, 2236220, 2619572, 3130708, 3274465, 3913385, 4584251, 6548930, 7826770, 9168502, 13097860, 15653540, 18337004, 22921255, 32089757, 45842510, 64179514, 91685020, 128359028, 160448785, 320897570, 641795140]

約数ペア:

[(1, 641795140), (2, 320897570), (4, 160448785), (5, 128359028), (7, 91685020), (10, 64179514), (14, 45842510), (20, 32089757), (28, 22921255), (35, 18337004), (41, 15653540), (49, 13097860), (70, 9168502), (82, 7826770), (98, 6548930), (140, 4584251), (164, 3913385), (196, 3274465), (205, 3130708), (245, 2619572), (287, 2236220), (410, 1565354), (490, 1309786), (574, 1118110), (820, 782677), (980, 654893), (1148, 559055), (1435, 447244), (2009, 319460), (2870, 223622), (4018, 159730), (5740, 111811), (8036, 79865), (10045, 63892), (15973, 40180), (20090, 31946)]