31189520

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{257}}^1$

素因数の和:348

約数の個数: 80

約数和(自身を含む): 76588848

約数和(自身を除く): 45399328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 41, 74, 80, 82, 148, 164, 185, 205, 257, 296, 328, 370, 410, 514, 592, 656, 740, 820, 1028, 1285, 1480, 1517, 1640, 2056, 2570, 2960, 3034, 3280, 4112, 5140, 6068, 7585, 9509, 10280, 10537, 12136, 15170, 19018, 20560, 21074, 24272, 30340, 38036, 42148, 47545, 52685, 60680, 76072, 84296, 95090, 105370, 121360, 152144, 168592, 190180, 210740, 380360, 389869, 421480, 760720, 779738, 842960, 1559476, 1949345, 3118952, 3898690, 6237904, 7797380, 15594760, 31189520]

約数ペア:

[(1, 31189520), (2, 15594760), (4, 7797380), (5, 6237904), (8, 3898690), (10, 3118952), (16, 1949345), (20, 1559476), (37, 842960), (40, 779738), (41, 760720), (74, 421480), (80, 389869), (82, 380360), (148, 210740), (164, 190180), (185, 168592), (205, 152144), (257, 121360), (296, 105370), (328, 95090), (370, 84296), (410, 76072), (514, 60680), (592, 52685), (656, 47545), (740, 42148), (820, 38036), (1028, 30340), (1285, 24272), (1480, 21074), (1517, 20560), (1640, 19018), (2056, 15170), (2570, 12136), (2960, 10537), (3034, 10280), (3280, 9509), (4112, 7585), (5140, 6068)]