2211860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:121

約数の個数: 72

約数和(自身を含む): 5640264

約数和(自身を除く): 3428404

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 49, 61, 70, 74, 98, 122, 140, 148, 185, 196, 244, 245, 259, 305, 370, 427, 490, 518, 610, 740, 854, 980, 1036, 1220, 1295, 1708, 1813, 2135, 2257, 2590, 2989, 3626, 4270, 4514, 5180, 5978, 7252, 8540, 9028, 9065, 11285, 11956, 14945, 15799, 18130, 22570, 29890, 31598, 36260, 45140, 59780, 63196, 78995, 110593, 157990, 221186, 315980, 442372, 552965, 1105930, 2211860]

約数ペア:

[(1, 2211860), (2, 1105930), (4, 552965), (5, 442372), (7, 315980), (10, 221186), (14, 157990), (20, 110593), (28, 78995), (35, 63196), (37, 59780), (49, 45140), (61, 36260), (70, 31598), (74, 29890), (98, 22570), (122, 18130), (140, 15799), (148, 14945), (185, 11956), (196, 11285), (244, 9065), (245, 9028), (259, 8540), (305, 7252), (370, 5978), (427, 5180), (490, 4514), (518, 4270), (610, 3626), (740, 2989), (854, 2590), (980, 2257), (1036, 2135), (1220, 1813), (1295, 1708)]