1878990640

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{4373}}^1$

素因数の和:4558

約数の個数: 80

約数和(自身を含む): 4510398816

約数和(自身を除く): 2631408176

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 131, 164, 205, 262, 328, 410, 524, 655, 656, 820, 1048, 1310, 1640, 2096, 2620, 3280, 4373, 5240, 5371, 8746, 10480, 10742, 17492, 21484, 21865, 26855, 34984, 42968, 43730, 53710, 69968, 85936, 87460, 107420, 174920, 179293, 214840, 349840, 358586, 429680, 572863, 717172, 896465, 1145726, 1434344, 1792930, 2291452, 2864315, 2868688, 3585860, 4582904, 5728630, 7171720, 9165808, 11457260, 14343440, 22914520, 23487383, 45829040, 46974766, 93949532, 117436915, 187899064, 234873830, 375798128, 469747660, 939495320, 1878990640]

約数ペア:

[(1, 1878990640), (2, 939495320), (4, 469747660), (5, 375798128), (8, 234873830), (10, 187899064), (16, 117436915), (20, 93949532), (40, 46974766), (41, 45829040), (80, 23487383), (82, 22914520), (131, 14343440), (164, 11457260), (205, 9165808), (262, 7171720), (328, 5728630), (410, 4582904), (524, 3585860), (655, 2868688), (656, 2864315), (820, 2291452), (1048, 1792930), (1310, 1434344), (1640, 1145726), (2096, 896465), (2620, 717172), (3280, 572863), (4373, 429680), (5240, 358586), (5371, 349840), (8746, 214840), (10480, 179293), (10742, 174920), (17492, 107420), (21484, 87460), (21865, 85936), (26855, 69968), (34984, 53710), (42968, 43730)]