38928040

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1\times {\mathrm{127}}^1$

素因数の和:314

約数の個数: 64

約数和(自身を含む): 90316800

約数和(自身を除く): 51388760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 97, 127, 158, 194, 254, 316, 388, 395, 485, 508, 632, 635, 776, 790, 970, 1016, 1270, 1580, 1940, 2540, 3160, 3880, 5080, 7663, 10033, 12319, 15326, 20066, 24638, 30652, 38315, 40132, 49276, 50165, 61304, 61595, 76630, 80264, 98552, 100330, 123190, 153260, 200660, 246380, 306520, 401320, 492760, 973201, 1946402, 3892804, 4866005, 7785608, 9732010, 19464020, 38928040]

約数ペア:

[(1, 38928040), (2, 19464020), (4, 9732010), (5, 7785608), (8, 4866005), (10, 3892804), (20, 1946402), (40, 973201), (79, 492760), (97, 401320), (127, 306520), (158, 246380), (194, 200660), (254, 153260), (316, 123190), (388, 100330), (395, 98552), (485, 80264), (508, 76630), (632, 61595), (635, 61304), (776, 50165), (790, 49276), (970, 40132), (1016, 38315), (1270, 30652), (1580, 24638), (1940, 20066), (2540, 15326), (3160, 12319), (3880, 10033), (5080, 7663)]