20177580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:259

約数の個数: 96

約数和(自身を含む): 59371200

約数和(自身を除く): 39193620

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 37, 60, 61, 74, 111, 122, 148, 149, 183, 185, 222, 244, 298, 305, 366, 370, 444, 447, 555, 596, 610, 732, 740, 745, 894, 915, 1110, 1220, 1490, 1788, 1830, 2220, 2235, 2257, 2980, 3660, 4470, 4514, 5513, 6771, 8940, 9028, 9089, 11026, 11285, 13542, 16539, 18178, 22052, 22570, 27084, 27267, 27565, 33078, 33855, 36356, 45140, 45445, 54534, 55130, 66156, 67710, 82695, 90890, 109068, 110260, 135420, 136335, 165390, 181780, 272670, 330780, 336293, 545340, 672586, 1008879, 1345172, 1681465, 2017758, 3362930, 4035516, 5044395, 6725860, 10088790, 20177580]

約数ペア:

[(1, 20177580), (2, 10088790), (3, 6725860), (4, 5044395), (5, 4035516), (6, 3362930), (10, 2017758), (12, 1681465), (15, 1345172), (20, 1008879), (30, 672586), (37, 545340), (60, 336293), (61, 330780), (74, 272670), (111, 181780), (122, 165390), (148, 136335), (149, 135420), (183, 110260), (185, 109068), (222, 90890), (244, 82695), (298, 67710), (305, 66156), (366, 55130), (370, 54534), (444, 45445), (447, 45140), (555, 36356), (596, 33855), (610, 33078), (732, 27565), (740, 27267), (745, 27084), (894, 22570), (915, 22052), (1110, 18178), (1220, 16539), (1490, 13542), (1788, 11285), (1830, 11026), (2220, 9089), (2235, 9028), (2257, 8940), (2980, 6771), (3660, 5513), (4470, 4514)]