20636280

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{431}}^1$

素因数の和:474

約数の個数: 192

約数和(自身を含む): 80870400

約数和(自身を除く): 60234120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 19, 20, 21, 24, 28, 30, 35, 36, 38, 40, 42, 45, 56, 57, 60, 63, 70, 72, 76, 84, 90, 95, 105, 114, 120, 126, 133, 140, 152, 168, 171, 180, 190, 210, 228, 252, 266, 280, 285, 315, 342, 360, 380, 399, 420, 431, 456, 504, 532, 570, 630, 665, 684, 760, 798, 840, 855, 862, 1064, 1140, 1197, 1260, 1293, 1330, 1368, 1596, 1710, 1724, 1995, 2155, 2280, 2394, 2520, 2586, 2660, 3017, 3192, 3420, 3448, 3879, 3990, 4310, 4788, 5172, 5320, 5985, 6034, 6465, 6840, 7758, 7980, 8189, 8620, 9051, 9576, 10344, 11970, 12068, 12930, 15085, 15516, 15960, 16378, 17240, 18102, 19395, 23940, 24136, 24567, 25860, 27153, 30170, 31032, 32756, 36204, 38790, 40945, 45255, 47880, 49134, 51720, 54306, 57323, 60340, 65512, 72408, 73701, 77580, 81890, 90510, 98268, 108612, 114646, 120680, 122835, 135765, 147402, 155160, 163780, 171969, 181020, 196536, 217224, 229292, 245670, 271530, 286615, 294804, 327560, 343938, 362040, 368505, 458584, 491340, 515907, 543060, 573230, 589608, 687876, 737010, 859845, 982680, 1031814, 1086120, 1146460, 1375752, 1474020, 1719690, 2063628, 2292920, 2579535, 2948040, 3439380, 4127256, 5159070, 6878760, 10318140, 20636280]

約数ペア:

[(1, 20636280), (2, 10318140), (3, 6878760), (4, 5159070), (5, 4127256), (6, 3439380), (7, 2948040), (8, 2579535), (9, 2292920), (10, 2063628), (12, 1719690), (14, 1474020), (15, 1375752), (18, 1146460), (19, 1086120), (20, 1031814), (21, 982680), (24, 859845), (28, 737010), (30, 687876), (35, 589608), (36, 573230), (38, 543060), (40, 515907), (42, 491340), (45, 458584), (56, 368505), (57, 362040), (60, 343938), (63, 327560), (70, 294804), (72, 286615), (76, 271530), (84, 245670), (90, 229292), (95, 217224), (105, 196536), (114, 181020), (120, 171969), (126, 163780), (133, 155160), (140, 147402), (152, 135765), (168, 122835), (171, 120680), (180, 114646), (190, 108612), (210, 98268), (228, 90510), (252, 81890), (266, 77580), (280, 73701), (285, 72408), (315, 65512), (342, 60340), (360, 57323), (380, 54306), (399, 51720), (420, 49134), (431, 47880), (456, 45255), (504, 40945), (532, 38790), (570, 36204), (630, 32756), (665, 31032), (684, 30170), (760, 27153), (798, 25860), (840, 24567), (855, 24136), (862, 23940), (1064, 19395), (1140, 18102), (1197, 17240), (1260, 16378), (1293, 15960), (1330, 15516), (1368, 15085), (1596, 12930), (1710, 12068), (1724, 11970), (1995, 10344), (2155, 9576), (2280, 9051), (2394, 8620), (2520, 8189), (2586, 7980), (2660, 7758), (3017, 6840), (3192, 6465), (3420, 6034), (3448, 5985), (3879, 5320), (3990, 5172), (4310, 4788)]