420900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{61}}^1$

素因数の和:101

約数の個数: 72

約数和(自身を含む): 1291584

約数和(自身を除く): 870684

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 25, 30, 46, 50, 60, 61, 69, 75, 92, 100, 115, 122, 138, 150, 183, 230, 244, 276, 300, 305, 345, 366, 460, 575, 610, 690, 732, 915, 1150, 1220, 1380, 1403, 1525, 1725, 1830, 2300, 2806, 3050, 3450, 3660, 4209, 4575, 5612, 6100, 6900, 7015, 8418, 9150, 14030, 16836, 18300, 21045, 28060, 35075, 42090, 70150, 84180, 105225, 140300, 210450, 420900]

約数ペア:

[(1, 420900), (2, 210450), (3, 140300), (4, 105225), (5, 84180), (6, 70150), (10, 42090), (12, 35075), (15, 28060), (20, 21045), (23, 18300), (25, 16836), (30, 14030), (46, 9150), (50, 8418), (60, 7015), (61, 6900), (69, 6100), (75, 5612), (92, 4575), (100, 4209), (115, 3660), (122, 3450), (138, 3050), (150, 2806), (183, 2300), (230, 1830), (244, 1725), (276, 1525), (300, 1403), (305, 1380), (345, 1220), (366, 1150), (460, 915), (575, 732), (610, 690)]