281331540

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{167}}^1\times {\mathrm{191}}^1$

素因数の和:387

約数の個数: 216

約数和(自身を含む): 1003871232

約数和(自身を除く): 722539692

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 167, 180, 191, 196, 210, 245, 252, 294, 315, 334, 382, 420, 441, 490, 501, 573, 588, 630, 668, 735, 764, 835, 882, 955, 980, 1002, 1146, 1169, 1260, 1337, 1470, 1503, 1670, 1719, 1764, 1910, 2004, 2205, 2292, 2338, 2505, 2674, 2865, 2940, 3006, 3340, 3438, 3507, 3820, 4011, 4410, 4676, 5010, 5348, 5730, 5845, 6012, 6685, 6876, 7014, 7515, 8022, 8183, 8595, 8820, 9359, 10020, 10521, 11460, 11690, 12033, 13370, 14028, 15030, 16044, 16366, 17190, 17535, 18718, 20055, 21042, 23380, 24066, 24549, 26740, 28077, 30060, 31897, 32732, 34380, 35070, 37436, 40110, 40915, 42084, 46795, 48132, 49098, 52605, 56154, 60165, 63794, 70140, 73647, 80220, 81830, 84231, 93590, 95691, 98196, 105210, 112308, 120330, 122745, 127588, 140385, 147294, 159485, 163660, 168462, 187180, 191382, 210420, 223279, 240660, 245490, 280770, 287073, 294588, 318970, 336924, 368235, 382764, 421155, 446558, 478455, 490980, 561540, 574146, 637940, 669837, 736470, 842310, 893116, 956910, 1116395, 1148292, 1339674, 1435365, 1472940, 1562953, 1684620, 1913820, 2009511, 2232790, 2679348, 2870730, 3125906, 3349185, 4019022, 4465580, 4688859, 5741460, 6251812, 6698370, 7814765, 8038044, 9377718, 10047555, 13396740, 14066577, 15629530, 18755436, 20095110, 23444295, 28133154, 31259060, 40190220, 46888590, 56266308, 70332885, 93777180, 140665770, 281331540]

約数ペア:

[(1, 281331540), (2, 140665770), (3, 93777180), (4, 70332885), (5, 56266308), (6, 46888590), (7, 40190220), (9, 31259060), (10, 28133154), (12, 23444295), (14, 20095110), (15, 18755436), (18, 15629530), (20, 14066577), (21, 13396740), (28, 10047555), (30, 9377718), (35, 8038044), (36, 7814765), (42, 6698370), (45, 6251812), (49, 5741460), (60, 4688859), (63, 4465580), (70, 4019022), (84, 3349185), (90, 3125906), (98, 2870730), (105, 2679348), (126, 2232790), (140, 2009511), (147, 1913820), (167, 1684620), (180, 1562953), (191, 1472940), (196, 1435365), (210, 1339674), (245, 1148292), (252, 1116395), (294, 956910), (315, 893116), (334, 842310), (382, 736470), (420, 669837), (441, 637940), (490, 574146), (501, 561540), (573, 490980), (588, 478455), (630, 446558), (668, 421155), (735, 382764), (764, 368235), (835, 336924), (882, 318970), (955, 294588), (980, 287073), (1002, 280770), (1146, 245490), (1169, 240660), (1260, 223279), (1337, 210420), (1470, 191382), (1503, 187180), (1670, 168462), (1719, 163660), (1764, 159485), (1910, 147294), (2004, 140385), (2205, 127588), (2292, 122745), (2338, 120330), (2505, 112308), (2674, 105210), (2865, 98196), (2940, 95691), (3006, 93590), (3340, 84231), (3438, 81830), (3507, 80220), (3820, 73647), (4011, 70140), (4410, 63794), (4676, 60165), (5010, 56154), (5348, 52605), (5730, 49098), (5845, 48132), (6012, 46795), (6685, 42084), (6876, 40915), (7014, 40110), (7515, 37436), (8022, 35070), (8183, 34380), (8595, 32732), (8820, 31897), (9359, 30060), (10020, 28077), (10521, 26740), (11460, 24549), (11690, 24066), (12033, 23380), (13370, 21042), (14028, 20055), (15030, 18718), (16044, 17535), (16366, 17190)]