19840140

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{331}}^1$

素因数の和:389

約数の個数: 120

約数和(自身を含む): 64114512

約数和(自身を除く): 44274372

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 37, 45, 54, 60, 74, 81, 90, 108, 111, 135, 148, 162, 180, 185, 222, 270, 324, 331, 333, 370, 405, 444, 540, 555, 662, 666, 740, 810, 993, 999, 1110, 1324, 1332, 1620, 1655, 1665, 1986, 1998, 2220, 2979, 2997, 3310, 3330, 3972, 3996, 4965, 4995, 5958, 5994, 6620, 6660, 8937, 9930, 9990, 11916, 11988, 12247, 14895, 14985, 17874, 19860, 19980, 24494, 26811, 29790, 29970, 35748, 36741, 44685, 48988, 53622, 59580, 59940, 61235, 73482, 89370, 107244, 110223, 122470, 134055, 146964, 178740, 183705, 220446, 244940, 268110, 330669, 367410, 440892, 536220, 551115, 661338, 734820, 992007, 1102230, 1322676, 1653345, 1984014, 2204460, 3306690, 3968028, 4960035, 6613380, 9920070, 19840140]

約数ペア:

[(1, 19840140), (2, 9920070), (3, 6613380), (4, 4960035), (5, 3968028), (6, 3306690), (9, 2204460), (10, 1984014), (12, 1653345), (15, 1322676), (18, 1102230), (20, 992007), (27, 734820), (30, 661338), (36, 551115), (37, 536220), (45, 440892), (54, 367410), (60, 330669), (74, 268110), (81, 244940), (90, 220446), (108, 183705), (111, 178740), (135, 146964), (148, 134055), (162, 122470), (180, 110223), (185, 107244), (222, 89370), (270, 73482), (324, 61235), (331, 59940), (333, 59580), (370, 53622), (405, 48988), (444, 44685), (540, 36741), (555, 35748), (662, 29970), (666, 29790), (740, 26811), (810, 24494), (993, 19980), (999, 19860), (1110, 17874), (1324, 14985), (1332, 14895), (1620, 12247), (1655, 11988), (1665, 11916), (1986, 9990), (1998, 9930), (2220, 8937), (2979, 6660), (2997, 6620), (3310, 5994), (3330, 5958), (3972, 4995), (3996, 4965)]