20708100

素因数分解:

$2^2\times 3^2\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1$

素因数の和:219

約数の個数: 216

約数和(自身を含む): 78536640

約数和(自身を除く): 57828540

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 25, 28, 30, 35, 36, 38, 42, 45, 50, 57, 60, 63, 70, 75, 76, 84, 90, 95, 100, 105, 114, 126, 133, 140, 150, 171, 173, 175, 180, 190, 210, 225, 228, 252, 266, 285, 300, 315, 342, 346, 350, 380, 399, 420, 450, 475, 519, 525, 532, 570, 630, 665, 684, 692, 700, 798, 855, 865, 900, 950, 1038, 1050, 1140, 1197, 1211, 1260, 1330, 1425, 1557, 1575, 1596, 1710, 1730, 1900, 1995, 2076, 2100, 2394, 2422, 2595, 2660, 2850, 3114, 3150, 3287, 3325, 3420, 3460, 3633, 3990, 4275, 4325, 4788, 4844, 5190, 5700, 5985, 6055, 6228, 6300, 6574, 6650, 7266, 7785, 7980, 8550, 8650, 9861, 9975, 10380, 10899, 11970, 12110, 12975, 13148, 13300, 14532, 15570, 16435, 17100, 17300, 18165, 19722, 19950, 21798, 23009, 23940, 24220, 25950, 29583, 29925, 30275, 31140, 32870, 36330, 38925, 39444, 39900, 43596, 46018, 49305, 51900, 54495, 59166, 59850, 60550, 65740, 69027, 72660, 77850, 82175, 90825, 92036, 98610, 108990, 115045, 118332, 119700, 121100, 138054, 147915, 155700, 164350, 181650, 197220, 207081, 217980, 230090, 246525, 272475, 276108, 295830, 328700, 345135, 363300, 414162, 460180, 493050, 544950, 575225, 591660, 690270, 739575, 828324, 986100, 1035405, 1089900, 1150450, 1380540, 1479150, 1725675, 2070810, 2300900, 2958300, 3451350, 4141620, 5177025, 6902700, 10354050, 20708100]

約数ペア:

[(1, 20708100), (2, 10354050), (3, 6902700), (4, 5177025), (5, 4141620), (6, 3451350), (7, 2958300), (9, 2300900), (10, 2070810), (12, 1725675), (14, 1479150), (15, 1380540), (18, 1150450), (19, 1089900), (20, 1035405), (21, 986100), (25, 828324), (28, 739575), (30, 690270), (35, 591660), (36, 575225), (38, 544950), (42, 493050), (45, 460180), (50, 414162), (57, 363300), (60, 345135), (63, 328700), (70, 295830), (75, 276108), (76, 272475), (84, 246525), (90, 230090), (95, 217980), (100, 207081), (105, 197220), (114, 181650), (126, 164350), (133, 155700), (140, 147915), (150, 138054), (171, 121100), (173, 119700), (175, 118332), (180, 115045), (190, 108990), (210, 98610), (225, 92036), (228, 90825), (252, 82175), (266, 77850), (285, 72660), (300, 69027), (315, 65740), (342, 60550), (346, 59850), (350, 59166), (380, 54495), (399, 51900), (420, 49305), (450, 46018), (475, 43596), (519, 39900), (525, 39444), (532, 38925), (570, 36330), (630, 32870), (665, 31140), (684, 30275), (692, 29925), (700, 29583), (798, 25950), (855, 24220), (865, 23940), (900, 23009), (950, 21798), (1038, 19950), (1050, 19722), (1140, 18165), (1197, 17300), (1211, 17100), (1260, 16435), (1330, 15570), (1425, 14532), (1557, 13300), (1575, 13148), (1596, 12975), (1710, 12110), (1730, 11970), (1900, 10899), (1995, 10380), (2076, 9975), (2100, 9861), (2394, 8650), (2422, 8550), (2595, 7980), (2660, 7785), (2850, 7266), (3114, 6650), (3150, 6574), (3287, 6300), (3325, 6228), (3420, 6055), (3460, 5985), (3633, 5700), (3990, 5190), (4275, 4844), (4325, 4788)]