249840780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^2\times {\mathrm{619}}^1$

素因数の和:700

約数の個数: 144

約数和(自身を含む): 827447040

約数和(自身を除く): 577606260

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 31, 35, 42, 60, 62, 70, 84, 93, 105, 124, 140, 155, 186, 210, 217, 310, 372, 420, 434, 465, 619, 620, 651, 868, 930, 961, 1085, 1238, 1302, 1857, 1860, 1922, 2170, 2476, 2604, 2883, 3095, 3255, 3714, 3844, 4333, 4340, 4805, 5766, 6190, 6510, 6727, 7428, 8666, 9285, 9610, 11532, 12380, 12999, 13020, 13454, 14415, 17332, 18570, 19189, 19220, 20181, 21665, 25998, 26908, 28830, 33635, 37140, 38378, 40362, 43330, 51996, 57567, 57660, 64995, 67270, 76756, 80724, 86660, 95945, 100905, 115134, 129990, 134323, 134540, 191890, 201810, 230268, 259980, 268646, 287835, 383780, 402969, 403620, 537292, 575670, 594859, 671615, 805938, 1151340, 1189718, 1343230, 1611876, 1784577, 2014845, 2379436, 2686460, 2974295, 3569154, 4029690, 4164013, 5948590, 7138308, 8059380, 8328026, 8922885, 11897180, 12492039, 16656052, 17845770, 20820065, 24984078, 35691540, 41640130, 49968156, 62460195, 83280260, 124920390, 249840780]

約数ペア:

[(1, 249840780), (2, 124920390), (3, 83280260), (4, 62460195), (5, 49968156), (6, 41640130), (7, 35691540), (10, 24984078), (12, 20820065), (14, 17845770), (15, 16656052), (20, 12492039), (21, 11897180), (28, 8922885), (30, 8328026), (31, 8059380), (35, 7138308), (42, 5948590), (60, 4164013), (62, 4029690), (70, 3569154), (84, 2974295), (93, 2686460), (105, 2379436), (124, 2014845), (140, 1784577), (155, 1611876), (186, 1343230), (210, 1189718), (217, 1151340), (310, 805938), (372, 671615), (420, 594859), (434, 575670), (465, 537292), (619, 403620), (620, 402969), (651, 383780), (868, 287835), (930, 268646), (961, 259980), (1085, 230268), (1238, 201810), (1302, 191890), (1857, 134540), (1860, 134323), (1922, 129990), (2170, 115134), (2476, 100905), (2604, 95945), (2883, 86660), (3095, 80724), (3255, 76756), (3714, 67270), (3844, 64995), (4333, 57660), (4340, 57567), (4805, 51996), (5766, 43330), (6190, 40362), (6510, 38378), (6727, 37140), (7428, 33635), (8666, 28830), (9285, 26908), (9610, 25998), (11532, 21665), (12380, 20181), (12999, 19220), (13020, 19189), (13454, 18570), (14415, 17332)]