1288949620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:254

約数の個数: 192

約数和(自身を含む): 3344302080

約数和(自身を除く): 2055352460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 47, 62, 70, 71, 89, 94, 124, 140, 142, 155, 178, 188, 217, 235, 284, 310, 329, 355, 356, 434, 445, 470, 497, 620, 623, 658, 710, 868, 890, 940, 994, 1085, 1246, 1316, 1420, 1457, 1645, 1780, 1988, 2170, 2201, 2485, 2492, 2759, 2914, 3115, 3290, 3337, 4183, 4340, 4402, 4970, 5518, 5828, 6230, 6319, 6580, 6674, 7285, 8366, 8804, 9940, 10199, 11005, 11036, 12460, 12638, 13348, 13795, 14570, 15407, 16685, 16732, 19313, 20398, 20915, 22010, 23359, 25276, 27590, 29140, 29281, 30814, 31595, 33370, 38626, 40796, 41830, 44020, 44233, 46718, 50995, 55180, 58562, 61628, 63190, 66740, 77035, 77252, 83660, 88466, 93436, 96565, 101990, 103447, 116795, 117124, 126380, 129673, 146405, 154070, 176932, 193130, 195889, 203980, 206894, 221165, 233590, 259346, 292810, 296993, 308140, 386260, 391778, 413788, 442330, 467180, 517235, 518692, 585620, 593986, 648365, 724129, 783556, 884660, 907711, 979445, 1034470, 1187972, 1296730, 1371223, 1448258, 1484965, 1815422, 1958890, 2068940, 2078951, 2593460, 2742446, 2896516, 2969930, 3620645, 3630844, 3917780, 4157902, 4538555, 5484892, 5939860, 6856115, 7241290, 8315804, 9077110, 9206783, 10394755, 13712230, 14482580, 18154220, 18413566, 20789510, 27424460, 36827132, 41579020, 46033915, 64447481, 92067830, 128894962, 184135660, 257789924, 322237405, 644474810, 1288949620]

約数ペア:

[(1, 1288949620), (2, 644474810), (4, 322237405), (5, 257789924), (7, 184135660), (10, 128894962), (14, 92067830), (20, 64447481), (28, 46033915), (31, 41579020), (35, 36827132), (47, 27424460), (62, 20789510), (70, 18413566), (71, 18154220), (89, 14482580), (94, 13712230), (124, 10394755), (140, 9206783), (142, 9077110), (155, 8315804), (178, 7241290), (188, 6856115), (217, 5939860), (235, 5484892), (284, 4538555), (310, 4157902), (329, 3917780), (355, 3630844), (356, 3620645), (434, 2969930), (445, 2896516), (470, 2742446), (497, 2593460), (620, 2078951), (623, 2068940), (658, 1958890), (710, 1815422), (868, 1484965), (890, 1448258), (940, 1371223), (994, 1296730), (1085, 1187972), (1246, 1034470), (1316, 979445), (1420, 907711), (1457, 884660), (1645, 783556), (1780, 724129), (1988, 648365), (2170, 593986), (2201, 585620), (2485, 518692), (2492, 517235), (2759, 467180), (2914, 442330), (3115, 413788), (3290, 391778), (3337, 386260), (4183, 308140), (4340, 296993), (4402, 292810), (4970, 259346), (5518, 233590), (5828, 221165), (6230, 206894), (6319, 203980), (6580, 195889), (6674, 193130), (7285, 176932), (8366, 154070), (8804, 146405), (9940, 129673), (10199, 126380), (11005, 117124), (11036, 116795), (12460, 103447), (12638, 101990), (13348, 96565), (13795, 93436), (14570, 88466), (15407, 83660), (16685, 77252), (16732, 77035), (19313, 66740), (20398, 63190), (20915, 61628), (22010, 58562), (23359, 55180), (25276, 50995), (27590, 46718), (29140, 44233), (29281, 44020), (30814, 41830), (31595, 40796), (33370, 38626)]