21639780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{5227}}^1$

素因数の和:5265

約数の個数: 72

約数和(自身を含む): 68507712

約数和(自身を除く): 46867932

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 138, 180, 207, 230, 276, 345, 414, 460, 690, 828, 1035, 1380, 2070, 4140, 5227, 10454, 15681, 20908, 26135, 31362, 47043, 52270, 62724, 78405, 94086, 104540, 120221, 156810, 188172, 235215, 240442, 313620, 360663, 470430, 480884, 601105, 721326, 940860, 1081989, 1202210, 1442652, 1803315, 2163978, 2404420, 3606630, 4327956, 5409945, 7213260, 10819890, 21639780]

約数ペア:

[(1, 21639780), (2, 10819890), (3, 7213260), (4, 5409945), (5, 4327956), (6, 3606630), (9, 2404420), (10, 2163978), (12, 1803315), (15, 1442652), (18, 1202210), (20, 1081989), (23, 940860), (30, 721326), (36, 601105), (45, 480884), (46, 470430), (60, 360663), (69, 313620), (90, 240442), (92, 235215), (115, 188172), (138, 156810), (180, 120221), (207, 104540), (230, 94086), (276, 78405), (345, 62724), (414, 52270), (460, 47043), (690, 31362), (828, 26135), (1035, 20908), (1380, 15681), (2070, 10454), (4140, 5227)]