402100040

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{11257}}^1$

素因数の和:11334

約数の個数: 64

約数和(自身を含む): 972691200

約数和(自身を除く): 570591160

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 47, 76, 94, 95, 152, 188, 190, 235, 376, 380, 470, 760, 893, 940, 1786, 1880, 3572, 4465, 7144, 8930, 11257, 17860, 22514, 35720, 45028, 56285, 90056, 112570, 213883, 225140, 427766, 450280, 529079, 855532, 1058158, 1069415, 1711064, 2116316, 2138830, 2645395, 4232632, 4277660, 5290790, 8555320, 10052501, 10581580, 20105002, 21163160, 40210004, 50262505, 80420008, 100525010, 201050020, 402100040]

約数ペア:

[(1, 402100040), (2, 201050020), (4, 100525010), (5, 80420008), (8, 50262505), (10, 40210004), (19, 21163160), (20, 20105002), (38, 10581580), (40, 10052501), (47, 8555320), (76, 5290790), (94, 4277660), (95, 4232632), (152, 2645395), (188, 2138830), (190, 2116316), (235, 1711064), (376, 1069415), (380, 1058158), (470, 855532), (760, 529079), (893, 450280), (940, 427766), (1786, 225140), (1880, 213883), (3572, 112570), (4465, 90056), (7144, 56285), (8930, 45028), (11257, 35720), (17860, 22514)]