21323680

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{241}}^1$

素因数の和:342

約数の個数: 96

約数和(自身を含む): 58544640

約数和(自身を除く): 37220960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 79, 80, 112, 140, 158, 160, 224, 241, 280, 316, 395, 482, 553, 560, 632, 790, 964, 1106, 1120, 1205, 1264, 1580, 1687, 1928, 2212, 2410, 2528, 2765, 3160, 3374, 3856, 4424, 4820, 5530, 6320, 6748, 7712, 8435, 8848, 9640, 11060, 12640, 13496, 16870, 17696, 19039, 19280, 22120, 26992, 33740, 38078, 38560, 44240, 53984, 67480, 76156, 88480, 95195, 133273, 134960, 152312, 190390, 266546, 269920, 304624, 380780, 533092, 609248, 666365, 761560, 1066184, 1332730, 1523120, 2132368, 2665460, 3046240, 4264736, 5330920, 10661840, 21323680]

約数ペア:

[(1, 21323680), (2, 10661840), (4, 5330920), (5, 4264736), (7, 3046240), (8, 2665460), (10, 2132368), (14, 1523120), (16, 1332730), (20, 1066184), (28, 761560), (32, 666365), (35, 609248), (40, 533092), (56, 380780), (70, 304624), (79, 269920), (80, 266546), (112, 190390), (140, 152312), (158, 134960), (160, 133273), (224, 95195), (241, 88480), (280, 76156), (316, 67480), (395, 53984), (482, 44240), (553, 38560), (560, 38078), (632, 33740), (790, 26992), (964, 22120), (1106, 19280), (1120, 19039), (1205, 17696), (1264, 16870), (1580, 13496), (1687, 12640), (1928, 11060), (2212, 9640), (2410, 8848), (2528, 8435), (2765, 7712), (3160, 6748), (3374, 6320), (3856, 5530), (4424, 4820)]