19851480

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{557}}^1$

素因数の和:591

約数の個数: 160

約数和(自身を含む): 72919440

約数和(自身を除く): 53067960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 27, 30, 33, 36, 40, 44, 45, 54, 55, 60, 66, 72, 81, 88, 90, 99, 108, 110, 120, 132, 135, 162, 165, 180, 198, 216, 220, 264, 270, 297, 324, 330, 360, 396, 405, 440, 495, 540, 557, 594, 648, 660, 792, 810, 891, 990, 1080, 1114, 1188, 1320, 1485, 1620, 1671, 1782, 1980, 2228, 2376, 2785, 2970, 3240, 3342, 3564, 3960, 4455, 4456, 5013, 5570, 5940, 6127, 6684, 7128, 8355, 8910, 10026, 11140, 11880, 12254, 13368, 15039, 16710, 17820, 18381, 20052, 22280, 24508, 25065, 30078, 30635, 33420, 35640, 36762, 40104, 45117, 49016, 50130, 55143, 60156, 61270, 66840, 73524, 75195, 90234, 91905, 100260, 110286, 120312, 122540, 147048, 150390, 165429, 180468, 183810, 200520, 220572, 225585, 245080, 275715, 300780, 330858, 360936, 367620, 441144, 451170, 496287, 551430, 601560, 661716, 735240, 827145, 902340, 992574, 1102860, 1323432, 1654290, 1804680, 1985148, 2205720, 2481435, 3308580, 3970296, 4962870, 6617160, 9925740, 19851480]

約数ペア:

[(1, 19851480), (2, 9925740), (3, 6617160), (4, 4962870), (5, 3970296), (6, 3308580), (8, 2481435), (9, 2205720), (10, 1985148), (11, 1804680), (12, 1654290), (15, 1323432), (18, 1102860), (20, 992574), (22, 902340), (24, 827145), (27, 735240), (30, 661716), (33, 601560), (36, 551430), (40, 496287), (44, 451170), (45, 441144), (54, 367620), (55, 360936), (60, 330858), (66, 300780), (72, 275715), (81, 245080), (88, 225585), (90, 220572), (99, 200520), (108, 183810), (110, 180468), (120, 165429), (132, 150390), (135, 147048), (162, 122540), (165, 120312), (180, 110286), (198, 100260), (216, 91905), (220, 90234), (264, 75195), (270, 73524), (297, 66840), (324, 61270), (330, 60156), (360, 55143), (396, 50130), (405, 49016), (440, 45117), (495, 40104), (540, 36762), (557, 35640), (594, 33420), (648, 30635), (660, 30078), (792, 25065), (810, 24508), (891, 22280), (990, 20052), (1080, 18381), (1114, 17820), (1188, 16710), (1320, 15039), (1485, 13368), (1620, 12254), (1671, 11880), (1782, 11140), (1980, 10026), (2228, 8910), (2376, 8355), (2785, 7128), (2970, 6684), (3240, 6127), (3342, 5940), (3564, 5570), (3960, 5013), (4455, 4456)]