388492780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{251}}^1\times {\mathrm{5953}}^1$

素因数の和:6226

約数の個数: 48

約数和(自身を含む): 882239904

約数和(自身を除く): 493747124

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 251, 260, 502, 1004, 1255, 2510, 3263, 5020, 5953, 6526, 11906, 13052, 16315, 23812, 29765, 32630, 59530, 65260, 77389, 119060, 154778, 309556, 386945, 773890, 1494203, 1547780, 2988406, 5976812, 7471015, 14942030, 19424639, 29884060, 38849278, 77698556, 97123195, 194246390, 388492780]

約数ペア:

[(1, 388492780), (2, 194246390), (4, 97123195), (5, 77698556), (10, 38849278), (13, 29884060), (20, 19424639), (26, 14942030), (52, 7471015), (65, 5976812), (130, 2988406), (251, 1547780), (260, 1494203), (502, 773890), (1004, 386945), (1255, 309556), (2510, 154778), (3263, 119060), (5020, 77389), (5953, 65260), (6526, 59530), (11906, 32630), (13052, 29765), (16315, 23812)]