38478040

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{257}}^1$

素因数の和:484

約数の個数: 64

約数和(自身を含む): 91951200

約数和(自身を除く): 53473160

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 197, 257, 380, 394, 514, 760, 788, 985, 1028, 1285, 1576, 1970, 2056, 2570, 3743, 3940, 4883, 5140, 7486, 7880, 9766, 10280, 14972, 18715, 19532, 24415, 29944, 37430, 39064, 48830, 50629, 74860, 97660, 101258, 149720, 195320, 202516, 253145, 405032, 506290, 961951, 1012580, 1923902, 2025160, 3847804, 4809755, 7695608, 9619510, 19239020, 38478040]

約数ペア:

[(1, 38478040), (2, 19239020), (4, 9619510), (5, 7695608), (8, 4809755), (10, 3847804), (19, 2025160), (20, 1923902), (38, 1012580), (40, 961951), (76, 506290), (95, 405032), (152, 253145), (190, 202516), (197, 195320), (257, 149720), (380, 101258), (394, 97660), (514, 74860), (760, 50629), (788, 48830), (985, 39064), (1028, 37430), (1285, 29944), (1576, 24415), (1970, 19532), (2056, 18715), (2570, 14972), (3743, 10280), (3940, 9766), (4883, 7880), (5140, 7486)]