212470280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{421}}^1$

素因数の和:511

約数の個数: 128

約数和(自身を含む): 554204160

約数和(自身を除く): 341733880

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 37, 40, 44, 55, 62, 74, 88, 110, 124, 148, 155, 185, 220, 248, 296, 310, 341, 370, 407, 421, 440, 620, 682, 740, 814, 842, 1147, 1240, 1364, 1480, 1628, 1684, 1705, 2035, 2105, 2294, 2728, 3256, 3368, 3410, 4070, 4210, 4588, 4631, 5735, 6820, 8140, 8420, 9176, 9262, 11470, 12617, 13051, 13640, 15577, 16280, 16840, 18524, 22940, 23155, 25234, 26102, 31154, 37048, 45880, 46310, 50468, 52204, 62308, 63085, 65255, 77885, 92620, 100936, 104408, 124616, 126170, 130510, 143561, 155770, 171347, 185240, 252340, 261020, 287122, 311540, 342694, 482887, 504680, 522040, 574244, 623080, 685388, 717805, 856735, 965774, 1148488, 1370776, 1435610, 1713470, 1931548, 2414435, 2871220, 3426940, 3863096, 4828870, 5311757, 5742440, 6853880, 9657740, 10623514, 19315480, 21247028, 26558785, 42494056, 53117570, 106235140, 212470280]

約数ペア:

[(1, 212470280), (2, 106235140), (4, 53117570), (5, 42494056), (8, 26558785), (10, 21247028), (11, 19315480), (20, 10623514), (22, 9657740), (31, 6853880), (37, 5742440), (40, 5311757), (44, 4828870), (55, 3863096), (62, 3426940), (74, 2871220), (88, 2414435), (110, 1931548), (124, 1713470), (148, 1435610), (155, 1370776), (185, 1148488), (220, 965774), (248, 856735), (296, 717805), (310, 685388), (341, 623080), (370, 574244), (407, 522040), (421, 504680), (440, 482887), (620, 342694), (682, 311540), (740, 287122), (814, 261020), (842, 252340), (1147, 185240), (1240, 171347), (1364, 155770), (1480, 143561), (1628, 130510), (1684, 126170), (1705, 124616), (2035, 104408), (2105, 100936), (2294, 92620), (2728, 77885), (3256, 65255), (3368, 63085), (3410, 62308), (4070, 52204), (4210, 50468), (4588, 46310), (4631, 45880), (5735, 37048), (6820, 31154), (8140, 26102), (8420, 25234), (9176, 23155), (9262, 22940), (11470, 18524), (12617, 16840), (13051, 16280), (13640, 15577)]