163240020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{809}}^1$

素因数の和:902

約数の個数: 144

約数和(自身を含む): 530712000

約数和(自身を除く): 367471980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 59, 60, 76, 90, 95, 114, 118, 171, 177, 180, 190, 228, 236, 285, 295, 342, 354, 380, 531, 570, 590, 684, 708, 809, 855, 885, 1062, 1121, 1140, 1180, 1618, 1710, 1770, 2124, 2242, 2427, 2655, 3236, 3363, 3420, 3540, 4045, 4484, 4854, 5310, 5605, 6726, 7281, 8090, 9708, 10089, 10620, 11210, 12135, 13452, 14562, 15371, 16180, 16815, 20178, 22420, 24270, 29124, 30742, 33630, 36405, 40356, 46113, 47731, 48540, 50445, 61484, 67260, 72810, 76855, 92226, 95462, 100890, 138339, 143193, 145620, 153710, 184452, 190924, 201780, 230565, 238655, 276678, 286386, 307420, 429579, 461130, 477310, 553356, 572772, 691695, 715965, 859158, 906889, 922260, 954620, 1383390, 1431930, 1718316, 1813778, 2147895, 2720667, 2766780, 2863860, 3627556, 4295790, 4534445, 5441334, 8162001, 8591580, 9068890, 10882668, 13603335, 16324002, 18137780, 27206670, 32648004, 40810005, 54413340, 81620010, 163240020]

約数ペア:

[(1, 163240020), (2, 81620010), (3, 54413340), (4, 40810005), (5, 32648004), (6, 27206670), (9, 18137780), (10, 16324002), (12, 13603335), (15, 10882668), (18, 9068890), (19, 8591580), (20, 8162001), (30, 5441334), (36, 4534445), (38, 4295790), (45, 3627556), (57, 2863860), (59, 2766780), (60, 2720667), (76, 2147895), (90, 1813778), (95, 1718316), (114, 1431930), (118, 1383390), (171, 954620), (177, 922260), (180, 906889), (190, 859158), (228, 715965), (236, 691695), (285, 572772), (295, 553356), (342, 477310), (354, 461130), (380, 429579), (531, 307420), (570, 286386), (590, 276678), (684, 238655), (708, 230565), (809, 201780), (855, 190924), (885, 184452), (1062, 153710), (1121, 145620), (1140, 143193), (1180, 138339), (1618, 100890), (1710, 95462), (1770, 92226), (2124, 76855), (2242, 72810), (2427, 67260), (2655, 61484), (3236, 50445), (3363, 48540), (3420, 47731), (3540, 46113), (4045, 40356), (4484, 36405), (4854, 33630), (5310, 30742), (5605, 29124), (6726, 24270), (7281, 22420), (8090, 20178), (9708, 16815), (10089, 16180), (10620, 15371), (11210, 14562), (12135, 13452)]