21613800

素因数分解:

$2^3\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1$

素因数の和:212

約数の個数: 192

約数和(自身を含む): 76870080

約数和(自身を除く): 55256280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 17, 20, 24, 25, 26, 30, 34, 39, 40, 50, 51, 52, 60, 65, 68, 75, 78, 85, 100, 102, 104, 120, 130, 136, 150, 156, 163, 170, 195, 200, 204, 221, 255, 260, 300, 312, 325, 326, 340, 390, 408, 425, 442, 489, 510, 520, 600, 650, 652, 663, 680, 780, 815, 850, 884, 975, 978, 1020, 1105, 1275, 1300, 1304, 1326, 1560, 1630, 1700, 1768, 1950, 1956, 2040, 2119, 2210, 2445, 2550, 2600, 2652, 2771, 3260, 3315, 3400, 3900, 3912, 4075, 4238, 4420, 4890, 5100, 5304, 5525, 5542, 6357, 6520, 6630, 7800, 8150, 8313, 8476, 8840, 9780, 10200, 10595, 11050, 11084, 12225, 12714, 13260, 13855, 16300, 16575, 16626, 16952, 19560, 21190, 22100, 22168, 24450, 25428, 26520, 27710, 31785, 32600, 33150, 33252, 36023, 41565, 42380, 44200, 48900, 50856, 52975, 55420, 63570, 66300, 66504, 69275, 72046, 83130, 84760, 97800, 105950, 108069, 110840, 127140, 132600, 138550, 144092, 158925, 166260, 180115, 207825, 211900, 216138, 254280, 277100, 288184, 317850, 332520, 360230, 415650, 423800, 432276, 540345, 554200, 635700, 720460, 831300, 864552, 900575, 1080690, 1271400, 1440920, 1662600, 1801150, 2161380, 2701725, 3602300, 4322760, 5403450, 7204600, 10806900, 21613800]

約数ペア:

[(1, 21613800), (2, 10806900), (3, 7204600), (4, 5403450), (5, 4322760), (6, 3602300), (8, 2701725), (10, 2161380), (12, 1801150), (13, 1662600), (15, 1440920), (17, 1271400), (20, 1080690), (24, 900575), (25, 864552), (26, 831300), (30, 720460), (34, 635700), (39, 554200), (40, 540345), (50, 432276), (51, 423800), (52, 415650), (60, 360230), (65, 332520), (68, 317850), (75, 288184), (78, 277100), (85, 254280), (100, 216138), (102, 211900), (104, 207825), (120, 180115), (130, 166260), (136, 158925), (150, 144092), (156, 138550), (163, 132600), (170, 127140), (195, 110840), (200, 108069), (204, 105950), (221, 97800), (255, 84760), (260, 83130), (300, 72046), (312, 69275), (325, 66504), (326, 66300), (340, 63570), (390, 55420), (408, 52975), (425, 50856), (442, 48900), (489, 44200), (510, 42380), (520, 41565), (600, 36023), (650, 33252), (652, 33150), (663, 32600), (680, 31785), (780, 27710), (815, 26520), (850, 25428), (884, 24450), (975, 22168), (978, 22100), (1020, 21190), (1105, 19560), (1275, 16952), (1300, 16626), (1304, 16575), (1326, 16300), (1560, 13855), (1630, 13260), (1700, 12714), (1768, 12225), (1950, 11084), (1956, 11050), (2040, 10595), (2119, 10200), (2210, 9780), (2445, 8840), (2550, 8476), (2600, 8313), (2652, 8150), (2771, 7800), (3260, 6630), (3315, 6520), (3400, 6357), (3900, 5542), (3912, 5525), (4075, 5304), (4238, 5100), (4420, 4890)]