280648620

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{617}}^1$

素因数の和:677

約数の個数: 216

約数和(自身を含む): 1028480544

約数和(自身を除く): 747831924

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 28, 30, 35, 36, 38, 42, 45, 57, 60, 63, 70, 76, 84, 90, 95, 105, 114, 126, 133, 140, 171, 180, 190, 210, 228, 252, 266, 285, 315, 342, 361, 380, 399, 420, 532, 570, 617, 630, 665, 684, 722, 798, 855, 1083, 1140, 1197, 1234, 1260, 1330, 1444, 1596, 1710, 1805, 1851, 1995, 2166, 2394, 2468, 2527, 2660, 3085, 3249, 3420, 3610, 3702, 3990, 4319, 4332, 4788, 5054, 5415, 5553, 5985, 6170, 6498, 7220, 7404, 7581, 7980, 8638, 9255, 10108, 10830, 11106, 11723, 11970, 12340, 12635, 12957, 12996, 15162, 16245, 17276, 18510, 21595, 21660, 22212, 22743, 23446, 23940, 25270, 25914, 27765, 30324, 32490, 35169, 37020, 37905, 38871, 43190, 45486, 46892, 50540, 51828, 55530, 58615, 64785, 64980, 70338, 75810, 77742, 82061, 86380, 90972, 105507, 111060, 113715, 117230, 129570, 140676, 151620, 155484, 164122, 175845, 194355, 211014, 222737, 227430, 234460, 246183, 259140, 328244, 351690, 388710, 410305, 422028, 445474, 454860, 492366, 527535, 668211, 703380, 738549, 777420, 820610, 890948, 984732, 1055070, 1113685, 1230915, 1336422, 1477098, 1559159, 1641220, 2004633, 2110140, 2227370, 2461830, 2672844, 2954196, 3118318, 3341055, 3692745, 4009266, 4454740, 4677477, 4923660, 6236636, 6682110, 7385490, 7795795, 8018532, 9354954, 10023165, 13364220, 14032431, 14770980, 15591590, 18709908, 20046330, 23387385, 28064862, 31183180, 40092660, 46774770, 56129724, 70162155, 93549540, 140324310, 280648620]

約数ペア:

[(1, 280648620), (2, 140324310), (3, 93549540), (4, 70162155), (5, 56129724), (6, 46774770), (7, 40092660), (9, 31183180), (10, 28064862), (12, 23387385), (14, 20046330), (15, 18709908), (18, 15591590), (19, 14770980), (20, 14032431), (21, 13364220), (28, 10023165), (30, 9354954), (35, 8018532), (36, 7795795), (38, 7385490), (42, 6682110), (45, 6236636), (57, 4923660), (60, 4677477), (63, 4454740), (70, 4009266), (76, 3692745), (84, 3341055), (90, 3118318), (95, 2954196), (105, 2672844), (114, 2461830), (126, 2227370), (133, 2110140), (140, 2004633), (171, 1641220), (180, 1559159), (190, 1477098), (210, 1336422), (228, 1230915), (252, 1113685), (266, 1055070), (285, 984732), (315, 890948), (342, 820610), (361, 777420), (380, 738549), (399, 703380), (420, 668211), (532, 527535), (570, 492366), (617, 454860), (630, 445474), (665, 422028), (684, 410305), (722, 388710), (798, 351690), (855, 328244), (1083, 259140), (1140, 246183), (1197, 234460), (1234, 227430), (1260, 222737), (1330, 211014), (1444, 194355), (1596, 175845), (1710, 164122), (1805, 155484), (1851, 151620), (1995, 140676), (2166, 129570), (2394, 117230), (2468, 113715), (2527, 111060), (2660, 105507), (3085, 90972), (3249, 86380), (3420, 82061), (3610, 77742), (3702, 75810), (3990, 70338), (4319, 64980), (4332, 64785), (4788, 58615), (5054, 55530), (5415, 51828), (5553, 50540), (5985, 46892), (6170, 45486), (6498, 43190), (7220, 38871), (7404, 37905), (7581, 37020), (7980, 35169), (8638, 32490), (9255, 30324), (10108, 27765), (10830, 25914), (11106, 25270), (11723, 23940), (11970, 23446), (12340, 22743), (12635, 22212), (12957, 21660), (12996, 21595), (15162, 18510), (16245, 17276)]