28336820

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1\times {\mathrm{257}}^1$

素因数の和:452

約数の個数: 48

約数和(自身を含む): 61765200

約数和(自身を除く): 33428380

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 149, 185, 257, 298, 370, 514, 596, 740, 745, 1028, 1285, 1490, 2570, 2980, 5140, 5513, 9509, 11026, 19018, 22052, 27565, 38036, 38293, 47545, 55130, 76586, 95090, 110260, 153172, 190180, 191465, 382930, 765860, 1416841, 2833682, 5667364, 7084205, 14168410, 28336820]

約数ペア:

[(1, 28336820), (2, 14168410), (4, 7084205), (5, 5667364), (10, 2833682), (20, 1416841), (37, 765860), (74, 382930), (148, 191465), (149, 190180), (185, 153172), (257, 110260), (298, 95090), (370, 76586), (514, 55130), (596, 47545), (740, 38293), (745, 38036), (1028, 27565), (1285, 22052), (1490, 19018), (2570, 11026), (2980, 9509), (5140, 5513)]