19181450

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{331}}^1$

素因数の和:423

約数の個数: 48

約数和(自身を含む): 38286240

約数和(自身を除く): 19104790

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 61, 95, 122, 190, 305, 331, 475, 610, 662, 950, 1159, 1525, 1655, 2318, 3050, 3310, 5795, 6289, 8275, 11590, 12578, 16550, 20191, 28975, 31445, 40382, 57950, 62890, 100955, 157225, 201910, 314450, 383629, 504775, 767258, 1009550, 1918145, 3836290, 9590725, 19181450]

約数ペア:

[(1, 19181450), (2, 9590725), (5, 3836290), (10, 1918145), (19, 1009550), (25, 767258), (38, 504775), (50, 383629), (61, 314450), (95, 201910), (122, 157225), (190, 100955), (305, 62890), (331, 57950), (475, 40382), (610, 31445), (662, 28975), (950, 20191), (1159, 16550), (1525, 12578), (1655, 11590), (2318, 8275), (3050, 6289), (3310, 5795)]