642860820

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{8951}}^1$

素因数の和:8995

約数の個数: 192

約数和(自身を含む): 2406297600

約数和(自身を除く): 1763436780

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 27, 28, 30, 35, 36, 38, 42, 45, 54, 57, 60, 63, 70, 76, 84, 90, 95, 105, 108, 114, 126, 133, 135, 140, 171, 180, 189, 190, 210, 228, 252, 266, 270, 285, 315, 342, 378, 380, 399, 420, 513, 532, 540, 570, 630, 665, 684, 756, 798, 855, 945, 1026, 1140, 1197, 1260, 1330, 1596, 1710, 1890, 1995, 2052, 2394, 2565, 2660, 3420, 3591, 3780, 3990, 4788, 5130, 5985, 7182, 7980, 8951, 10260, 11970, 14364, 17902, 17955, 23940, 26853, 35804, 35910, 44755, 53706, 62657, 71820, 80559, 89510, 107412, 125314, 134265, 161118, 170069, 179020, 187971, 241677, 250628, 268530, 313285, 322236, 340138, 375942, 402795, 483354, 510207, 537060, 563913, 626570, 680276, 751884, 805590, 850345, 939855, 966708, 1020414, 1127826, 1190483, 1208385, 1253140, 1530621, 1611180, 1691739, 1700690, 1879710, 2040828, 2255652, 2380966, 2416770, 2551035, 2819565, 3061242, 3383478, 3401380, 3571449, 3759420, 4591863, 4761932, 4833540, 5102070, 5639130, 5952415, 6122484, 6766956, 7142898, 7653105, 8458695, 9183726, 10204140, 10714347, 11278260, 11904830, 14285796, 15306210, 16917390, 17857245, 18367452, 21428694, 22959315, 23809660, 30612420, 32143041, 33834780, 35714490, 42857388, 45918630, 53571735, 64286082, 71428980, 91837260, 107143470, 128572164, 160715205, 214286940, 321430410, 642860820]

約数ペア:

[(1, 642860820), (2, 321430410), (3, 214286940), (4, 160715205), (5, 128572164), (6, 107143470), (7, 91837260), (9, 71428980), (10, 64286082), (12, 53571735), (14, 45918630), (15, 42857388), (18, 35714490), (19, 33834780), (20, 32143041), (21, 30612420), (27, 23809660), (28, 22959315), (30, 21428694), (35, 18367452), (36, 17857245), (38, 16917390), (42, 15306210), (45, 14285796), (54, 11904830), (57, 11278260), (60, 10714347), (63, 10204140), (70, 9183726), (76, 8458695), (84, 7653105), (90, 7142898), (95, 6766956), (105, 6122484), (108, 5952415), (114, 5639130), (126, 5102070), (133, 4833540), (135, 4761932), (140, 4591863), (171, 3759420), (180, 3571449), (189, 3401380), (190, 3383478), (210, 3061242), (228, 2819565), (252, 2551035), (266, 2416770), (270, 2380966), (285, 2255652), (315, 2040828), (342, 1879710), (378, 1700690), (380, 1691739), (399, 1611180), (420, 1530621), (513, 1253140), (532, 1208385), (540, 1190483), (570, 1127826), (630, 1020414), (665, 966708), (684, 939855), (756, 850345), (798, 805590), (855, 751884), (945, 680276), (1026, 626570), (1140, 563913), (1197, 537060), (1260, 510207), (1330, 483354), (1596, 402795), (1710, 375942), (1890, 340138), (1995, 322236), (2052, 313285), (2394, 268530), (2565, 250628), (2660, 241677), (3420, 187971), (3591, 179020), (3780, 170069), (3990, 161118), (4788, 134265), (5130, 125314), (5985, 107412), (7182, 89510), (7980, 80559), (8951, 71820), (10260, 62657), (11970, 53706), (14364, 44755), (17902, 35910), (17955, 35804), (23940, 26853)]