386707720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{163}}^1\times {\mathrm{229}}^1$

素因数の和:447

約数の個数: 128

約数和(自身を含む): 1032019200

約数和(自身を除く): 645311480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 37, 40, 56, 70, 74, 140, 148, 163, 185, 229, 259, 280, 296, 326, 370, 458, 518, 652, 740, 815, 916, 1036, 1141, 1145, 1295, 1304, 1480, 1603, 1630, 1832, 2072, 2282, 2290, 2590, 3206, 3260, 4564, 4580, 5180, 5705, 6031, 6412, 6520, 8015, 8473, 9128, 9160, 10360, 11410, 12062, 12824, 16030, 16946, 22820, 24124, 30155, 32060, 33892, 37327, 42217, 42365, 45640, 48248, 59311, 60310, 64120, 67784, 74654, 84434, 84730, 118622, 120620, 149308, 168868, 169460, 186635, 211085, 237244, 241240, 261289, 296555, 298616, 337736, 338920, 373270, 422170, 474488, 522578, 593110, 746540, 844340, 1045156, 1186220, 1306445, 1381099, 1493080, 1688680, 2090312, 2372440, 2612890, 2762198, 5225780, 5524396, 6905495, 9667693, 10451560, 11048792, 13810990, 19335386, 27621980, 38670772, 48338465, 55243960, 77341544, 96676930, 193353860, 386707720]

約数ペア:

[(1, 386707720), (2, 193353860), (4, 96676930), (5, 77341544), (7, 55243960), (8, 48338465), (10, 38670772), (14, 27621980), (20, 19335386), (28, 13810990), (35, 11048792), (37, 10451560), (40, 9667693), (56, 6905495), (70, 5524396), (74, 5225780), (140, 2762198), (148, 2612890), (163, 2372440), (185, 2090312), (229, 1688680), (259, 1493080), (280, 1381099), (296, 1306445), (326, 1186220), (370, 1045156), (458, 844340), (518, 746540), (652, 593110), (740, 522578), (815, 474488), (916, 422170), (1036, 373270), (1141, 338920), (1145, 337736), (1295, 298616), (1304, 296555), (1480, 261289), (1603, 241240), (1630, 237244), (1832, 211085), (2072, 186635), (2282, 169460), (2290, 168868), (2590, 149308), (3206, 120620), (3260, 118622), (4564, 84730), (4580, 84434), (5180, 74654), (5705, 67784), (6031, 64120), (6412, 60310), (6520, 59311), (8015, 48248), (8473, 45640), (9128, 42365), (9160, 42217), (10360, 37327), (11410, 33892), (12062, 32060), (12824, 30155), (16030, 24124), (16946, 22820)]