19994615460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{907}}^1\times {\mathrm{122471}}^1$

素因数の和:123393

約数の個数: 72

約数和(自身を含む): 60717698496

約数和(自身を除く): 40723083036

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 907, 1814, 2721, 3628, 4535, 5442, 8163, 9070, 10884, 13605, 16326, 18140, 27210, 32652, 40815, 54420, 81630, 122471, 163260, 244942, 367413, 489884, 612355, 734826, 1102239, 1224710, 1469652, 1837065, 2204478, 2449420, 3674130, 4408956, 5511195, 7348260, 11022390, 22044780, 111081197, 222162394, 333243591, 444324788, 555405985, 666487182, 999730773, 1110811970, 1332974364, 1666217955, 1999461546, 2221623940, 3332435910, 3998923092, 4998653865, 6664871820, 9997307730, 19994615460]

約数ペア:

[(1, 19994615460), (2, 9997307730), (3, 6664871820), (4, 4998653865), (5, 3998923092), (6, 3332435910), (9, 2221623940), (10, 1999461546), (12, 1666217955), (15, 1332974364), (18, 1110811970), (20, 999730773), (30, 666487182), (36, 555405985), (45, 444324788), (60, 333243591), (90, 222162394), (180, 111081197), (907, 22044780), (1814, 11022390), (2721, 7348260), (3628, 5511195), (4535, 4408956), (5442, 3674130), (8163, 2449420), (9070, 2204478), (10884, 1837065), (13605, 1469652), (16326, 1224710), (18140, 1102239), (27210, 734826), (32652, 612355), (40815, 489884), (54420, 367413), (81630, 244942), (122471, 163260)]