1720343820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{167}}^1\times {\mathrm{281}}^1$

素因数の和:520

約数の個数: 192

約数和(自身を含む): 5348560896

約数和(自身を除く): 3628217076

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 47, 52, 60, 65, 78, 94, 130, 141, 156, 167, 188, 195, 235, 260, 281, 282, 334, 390, 470, 501, 562, 564, 611, 668, 705, 780, 835, 843, 940, 1002, 1124, 1222, 1405, 1410, 1670, 1686, 1833, 2004, 2171, 2444, 2505, 2810, 2820, 3055, 3340, 3372, 3653, 3666, 4215, 4342, 5010, 5620, 6110, 6513, 7306, 7332, 7849, 8430, 8684, 9165, 10020, 10855, 10959, 12220, 13026, 13207, 14612, 15698, 16860, 18265, 18330, 21710, 21918, 23547, 26052, 26414, 31396, 32565, 36530, 36660, 39245, 39621, 43420, 43836, 46927, 47094, 52828, 54795, 65130, 66035, 73060, 78490, 79242, 93854, 94188, 102037, 109590, 117735, 130260, 132070, 140781, 156980, 158484, 171691, 187708, 198105, 204074, 219180, 234635, 235470, 264140, 281562, 306111, 343382, 396210, 408148, 469270, 470940, 510185, 515073, 563124, 610051, 612222, 686764, 703905, 792420, 858455, 938540, 1020370, 1030146, 1220102, 1224444, 1407810, 1530555, 1716910, 1830153, 2040740, 2060292, 2205569, 2440204, 2575365, 2815620, 3050255, 3061110, 3433820, 3660306, 4411138, 5150730, 6100510, 6122220, 6616707, 7320612, 8822276, 9150765, 10301460, 11027845, 12201020, 13233414, 18301530, 22055690, 26466828, 28672397, 33083535, 36603060, 44111380, 57344794, 66167070, 86017191, 114689588, 132334140, 143361985, 172034382, 286723970, 344068764, 430085955, 573447940, 860171910, 1720343820]

約数ペア:

[(1, 1720343820), (2, 860171910), (3, 573447940), (4, 430085955), (5, 344068764), (6, 286723970), (10, 172034382), (12, 143361985), (13, 132334140), (15, 114689588), (20, 86017191), (26, 66167070), (30, 57344794), (39, 44111380), (47, 36603060), (52, 33083535), (60, 28672397), (65, 26466828), (78, 22055690), (94, 18301530), (130, 13233414), (141, 12201020), (156, 11027845), (167, 10301460), (188, 9150765), (195, 8822276), (235, 7320612), (260, 6616707), (281, 6122220), (282, 6100510), (334, 5150730), (390, 4411138), (470, 3660306), (501, 3433820), (562, 3061110), (564, 3050255), (611, 2815620), (668, 2575365), (705, 2440204), (780, 2205569), (835, 2060292), (843, 2040740), (940, 1830153), (1002, 1716910), (1124, 1530555), (1222, 1407810), (1405, 1224444), (1410, 1220102), (1670, 1030146), (1686, 1020370), (1833, 938540), (2004, 858455), (2171, 792420), (2444, 703905), (2505, 686764), (2810, 612222), (2820, 610051), (3055, 563124), (3340, 515073), (3372, 510185), (3653, 470940), (3666, 469270), (4215, 408148), (4342, 396210), (5010, 343382), (5620, 306111), (6110, 281562), (6513, 264140), (7306, 235470), (7332, 234635), (7849, 219180), (8430, 204074), (8684, 198105), (9165, 187708), (10020, 171691), (10855, 158484), (10959, 156980), (12220, 140781), (13026, 132070), (13207, 130260), (14612, 117735), (15698, 109590), (16860, 102037), (18265, 94188), (18330, 93854), (21710, 79242), (21918, 78490), (23547, 73060), (26052, 66035), (26414, 65130), (31396, 54795), (32565, 52828), (36530, 47094), (36660, 46927), (39245, 43836), (39621, 43420)]