216995380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{163}}^1\times {\mathrm{257}}^1$

素因数の和:473

約数の個数: 96

約数和(自身を含む): 540239616

約数和(自身を除く): 323244236

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 70, 74, 140, 148, 163, 185, 257, 259, 326, 370, 514, 518, 652, 740, 815, 1028, 1036, 1141, 1285, 1295, 1630, 1799, 2282, 2570, 2590, 3260, 3598, 4564, 5140, 5180, 5705, 6031, 7196, 8995, 9509, 11410, 12062, 17990, 19018, 22820, 24124, 30155, 35980, 38036, 41891, 42217, 47545, 60310, 66563, 83782, 84434, 95090, 120620, 133126, 167564, 168868, 190180, 209455, 211085, 266252, 293237, 332815, 418910, 422170, 586474, 665630, 837820, 844340, 1172948, 1331260, 1466185, 1549967, 2932370, 3099934, 5864740, 6199868, 7749835, 10849769, 15499670, 21699538, 30999340, 43399076, 54248845, 108497690, 216995380]

約数ペア:

[(1, 216995380), (2, 108497690), (4, 54248845), (5, 43399076), (7, 30999340), (10, 21699538), (14, 15499670), (20, 10849769), (28, 7749835), (35, 6199868), (37, 5864740), (70, 3099934), (74, 2932370), (140, 1549967), (148, 1466185), (163, 1331260), (185, 1172948), (257, 844340), (259, 837820), (326, 665630), (370, 586474), (514, 422170), (518, 418910), (652, 332815), (740, 293237), (815, 266252), (1028, 211085), (1036, 209455), (1141, 190180), (1285, 168868), (1295, 167564), (1630, 133126), (1799, 120620), (2282, 95090), (2570, 84434), (2590, 83782), (3260, 66563), (3598, 60310), (4564, 47545), (5140, 42217), (5180, 41891), (5705, 38036), (6031, 35980), (7196, 30155), (8995, 24124), (9509, 22820), (11410, 19018), (12062, 17990)]