30785480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:151

約数の個数: 128

約数和(自身を含む): 81423360

約数和(自身を除く): 50637880

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 37, 40, 44, 55, 61, 62, 74, 88, 110, 122, 124, 148, 155, 185, 220, 244, 248, 296, 305, 310, 341, 370, 407, 440, 488, 610, 620, 671, 682, 740, 814, 1147, 1220, 1240, 1342, 1364, 1480, 1628, 1705, 1891, 2035, 2257, 2294, 2440, 2684, 2728, 3256, 3355, 3410, 3782, 4070, 4514, 4588, 5368, 5735, 6710, 6820, 7564, 8140, 9028, 9176, 9455, 11285, 11470, 12617, 13420, 13640, 15128, 16280, 18056, 18910, 20801, 22570, 22940, 24827, 25234, 26840, 37820, 41602, 45140, 45880, 49654, 50468, 63085, 69967, 75640, 83204, 90280, 99308, 100936, 104005, 124135, 126170, 139934, 166408, 198616, 208010, 248270, 252340, 279868, 349835, 416020, 496540, 504680, 559736, 699670, 769637, 832040, 993080, 1399340, 1539274, 2798680, 3078548, 3848185, 6157096, 7696370, 15392740, 30785480]

約数ペア:

[(1, 30785480), (2, 15392740), (4, 7696370), (5, 6157096), (8, 3848185), (10, 3078548), (11, 2798680), (20, 1539274), (22, 1399340), (31, 993080), (37, 832040), (40, 769637), (44, 699670), (55, 559736), (61, 504680), (62, 496540), (74, 416020), (88, 349835), (110, 279868), (122, 252340), (124, 248270), (148, 208010), (155, 198616), (185, 166408), (220, 139934), (244, 126170), (248, 124135), (296, 104005), (305, 100936), (310, 99308), (341, 90280), (370, 83204), (407, 75640), (440, 69967), (488, 63085), (610, 50468), (620, 49654), (671, 45880), (682, 45140), (740, 41602), (814, 37820), (1147, 26840), (1220, 25234), (1240, 24827), (1342, 22940), (1364, 22570), (1480, 20801), (1628, 18910), (1705, 18056), (1891, 16280), (2035, 15128), (2257, 13640), (2294, 13420), (2440, 12617), (2684, 11470), (2728, 11285), (3256, 9455), (3355, 9176), (3410, 9028), (3782, 8140), (4070, 7564), (4514, 6820), (4588, 6710), (5368, 5735)]