42420420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{257}}^1$

素因数の和:410

約数の個数: 144

約数和(自身を含む): 148756608

約数和(自身を除く): 106336188

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 131, 140, 180, 210, 252, 257, 262, 315, 393, 420, 514, 524, 630, 655, 771, 786, 917, 1028, 1179, 1260, 1285, 1310, 1542, 1572, 1799, 1834, 1965, 2313, 2358, 2570, 2620, 2751, 3084, 3598, 3668, 3855, 3930, 4585, 4626, 4716, 5140, 5397, 5502, 5895, 7196, 7710, 7860, 8253, 8995, 9170, 9252, 10794, 11004, 11565, 11790, 13755, 15420, 16191, 16506, 17990, 18340, 21588, 23130, 23580, 26985, 27510, 32382, 33012, 33667, 35980, 41265, 46260, 53970, 55020, 64764, 67334, 80955, 82530, 101001, 107940, 134668, 161910, 165060, 168335, 202002, 235669, 303003, 323820, 336670, 404004, 471338, 505005, 606006, 673340, 707007, 942676, 1010010, 1178345, 1212012, 1414014, 1515015, 2020020, 2121021, 2356690, 2828028, 3030030, 3535035, 4242042, 4713380, 6060060, 7070070, 8484084, 10605105, 14140140, 21210210, 42420420]

約数ペア:

[(1, 42420420), (2, 21210210), (3, 14140140), (4, 10605105), (5, 8484084), (6, 7070070), (7, 6060060), (9, 4713380), (10, 4242042), (12, 3535035), (14, 3030030), (15, 2828028), (18, 2356690), (20, 2121021), (21, 2020020), (28, 1515015), (30, 1414014), (35, 1212012), (36, 1178345), (42, 1010010), (45, 942676), (60, 707007), (63, 673340), (70, 606006), (84, 505005), (90, 471338), (105, 404004), (126, 336670), (131, 323820), (140, 303003), (180, 235669), (210, 202002), (252, 168335), (257, 165060), (262, 161910), (315, 134668), (393, 107940), (420, 101001), (514, 82530), (524, 80955), (630, 67334), (655, 64764), (771, 55020), (786, 53970), (917, 46260), (1028, 41265), (1179, 35980), (1260, 33667), (1285, 33012), (1310, 32382), (1542, 27510), (1572, 26985), (1799, 23580), (1834, 23130), (1965, 21588), (2313, 18340), (2358, 17990), (2570, 16506), (2620, 16191), (2751, 15420), (3084, 13755), (3598, 11790), (3668, 11565), (3855, 11004), (3930, 10794), (4585, 9252), (4626, 9170), (4716, 8995), (5140, 8253), (5397, 7860), (5502, 7710), (5895, 7196)]