7815320

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{3203}}^1$

素因数の和:3275

約数の個数: 32

約数和(自身を含む): 17878320

約数和(自身を除く): 10063000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 3203, 6406, 12812, 16015, 25624, 32030, 64060, 128120, 195383, 390766, 781532, 976915, 1563064, 1953830, 3907660, 7815320]

約数ペア:

[(1, 7815320), (2, 3907660), (4, 1953830), (5, 1563064), (8, 976915), (10, 781532), (20, 390766), (40, 195383), (61, 128120), (122, 64060), (244, 32030), (305, 25624), (488, 16015), (610, 12812), (1220, 6406), (2440, 3203)]