721899540

素因数分解:

$2^2\times 3^6\times 5^1\times {\mathrm{67}}^1\times {\mathrm{739}}^1$

素因数の和:833

約数の個数: 168

約数和(自身を含む): 2309989920

約数和(自身を除く): 1588090380

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 67, 81, 90, 108, 134, 135, 162, 180, 201, 243, 268, 270, 324, 335, 402, 405, 486, 540, 603, 670, 729, 739, 804, 810, 972, 1005, 1206, 1215, 1340, 1458, 1478, 1620, 1809, 2010, 2217, 2412, 2430, 2916, 2956, 3015, 3618, 3645, 3695, 4020, 4434, 4860, 5427, 6030, 6651, 7236, 7290, 7390, 8868, 9045, 10854, 11085, 12060, 13302, 14580, 14780, 16281, 18090, 19953, 21708, 22170, 26604, 27135, 32562, 33255, 36180, 39906, 44340, 48843, 49513, 54270, 59859, 65124, 66510, 79812, 81405, 97686, 99026, 99765, 108540, 119718, 133020, 148539, 162810, 179577, 195372, 198052, 199530, 239436, 244215, 247565, 297078, 299295, 325620, 359154, 399060, 445617, 488430, 495130, 538731, 594156, 598590, 718308, 742695, 891234, 897885, 976860, 990260, 1077462, 1197180, 1336851, 1485390, 1782468, 1795770, 2154924, 2228085, 2673702, 2693655, 2970780, 3591540, 4010553, 4456170, 5347404, 5387310, 6684255, 8021106, 8912340, 10774620, 12031659, 13368510, 16042212, 20052765, 24063318, 26737020, 36094977, 40105530, 48126636, 60158295, 72189954, 80211060, 120316590, 144379908, 180474885, 240633180, 360949770, 721899540]

約数ペア:

[(1, 721899540), (2, 360949770), (3, 240633180), (4, 180474885), (5, 144379908), (6, 120316590), (9, 80211060), (10, 72189954), (12, 60158295), (15, 48126636), (18, 40105530), (20, 36094977), (27, 26737020), (30, 24063318), (36, 20052765), (45, 16042212), (54, 13368510), (60, 12031659), (67, 10774620), (81, 8912340), (90, 8021106), (108, 6684255), (134, 5387310), (135, 5347404), (162, 4456170), (180, 4010553), (201, 3591540), (243, 2970780), (268, 2693655), (270, 2673702), (324, 2228085), (335, 2154924), (402, 1795770), (405, 1782468), (486, 1485390), (540, 1336851), (603, 1197180), (670, 1077462), (729, 990260), (739, 976860), (804, 897885), (810, 891234), (972, 742695), (1005, 718308), (1206, 598590), (1215, 594156), (1340, 538731), (1458, 495130), (1478, 488430), (1620, 445617), (1809, 399060), (2010, 359154), (2217, 325620), (2412, 299295), (2430, 297078), (2916, 247565), (2956, 244215), (3015, 239436), (3618, 199530), (3645, 198052), (3695, 195372), (4020, 179577), (4434, 162810), (4860, 148539), (5427, 133020), (6030, 119718), (6651, 108540), (7236, 99765), (7290, 99026), (7390, 97686), (8868, 81405), (9045, 79812), (10854, 66510), (11085, 65124), (12060, 59859), (13302, 54270), (14580, 49513), (14780, 48843), (16281, 44340), (18090, 39906), (19953, 36180), (21708, 33255), (22170, 32562), (26604, 27135)]