81218700

素因数分解:

$2^2\times 3^4\times 5^2\times {\mathrm{37}}^1\times {\mathrm{271}}^1$

素因数の和:334

約数の個数: 180

約数和(自身を含む): 271392352

約数和(自身を除く): 190173652

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 37, 45, 50, 54, 60, 74, 75, 81, 90, 100, 108, 111, 135, 148, 150, 162, 180, 185, 222, 225, 270, 271, 300, 324, 333, 370, 405, 444, 450, 540, 542, 555, 666, 675, 740, 810, 813, 900, 925, 999, 1084, 1110, 1332, 1350, 1355, 1620, 1626, 1665, 1850, 1998, 2025, 2220, 2439, 2700, 2710, 2775, 2997, 3252, 3330, 3700, 3996, 4050, 4065, 4878, 4995, 5420, 5550, 5994, 6660, 6775, 7317, 8100, 8130, 8325, 9756, 9990, 10027, 11100, 11988, 12195, 13550, 14634, 14985, 16260, 16650, 19980, 20054, 20325, 21951, 24390, 24975, 27100, 29268, 29970, 30081, 33300, 36585, 40108, 40650, 43902, 48780, 49950, 50135, 59940, 60162, 60975, 73170, 74925, 81300, 87804, 90243, 99900, 100270, 109755, 120324, 121950, 146340, 149850, 150405, 180486, 182925, 200540, 219510, 243900, 250675, 270729, 299700, 300810, 360972, 365850, 439020, 451215, 501350, 541458, 548775, 601620, 731700, 752025, 812187, 902430, 1002700, 1082916, 1097550, 1353645, 1504050, 1624374, 1804860, 2195100, 2256075, 2707290, 3008100, 3248748, 4060935, 4512150, 5414580, 6768225, 8121870, 9024300, 13536450, 16243740, 20304675, 27072900, 40609350, 81218700]

約数ペア:

[(1, 81218700), (2, 40609350), (3, 27072900), (4, 20304675), (5, 16243740), (6, 13536450), (9, 9024300), (10, 8121870), (12, 6768225), (15, 5414580), (18, 4512150), (20, 4060935), (25, 3248748), (27, 3008100), (30, 2707290), (36, 2256075), (37, 2195100), (45, 1804860), (50, 1624374), (54, 1504050), (60, 1353645), (74, 1097550), (75, 1082916), (81, 1002700), (90, 902430), (100, 812187), (108, 752025), (111, 731700), (135, 601620), (148, 548775), (150, 541458), (162, 501350), (180, 451215), (185, 439020), (222, 365850), (225, 360972), (270, 300810), (271, 299700), (300, 270729), (324, 250675), (333, 243900), (370, 219510), (405, 200540), (444, 182925), (450, 180486), (540, 150405), (542, 149850), (555, 146340), (666, 121950), (675, 120324), (740, 109755), (810, 100270), (813, 99900), (900, 90243), (925, 87804), (999, 81300), (1084, 74925), (1110, 73170), (1332, 60975), (1350, 60162), (1355, 59940), (1620, 50135), (1626, 49950), (1665, 48780), (1850, 43902), (1998, 40650), (2025, 40108), (2220, 36585), (2439, 33300), (2700, 30081), (2710, 29970), (2775, 29268), (2997, 27100), (3252, 24975), (3330, 24390), (3700, 21951), (3996, 20325), (4050, 20054), (4065, 19980), (4878, 16650), (4995, 16260), (5420, 14985), (5550, 14634), (5994, 13550), (6660, 12195), (6775, 11988), (7317, 11100), (8100, 10027), (8130, 9990), (8325, 9756)]