818702920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{503}}^1\times {\mathrm{5813}}^1$

素因数の和:6334

約数の個数: 64

約数和(自身を含む): 2109784320

約数和(自身を除く): 1291081400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 503, 1006, 2012, 2515, 3521, 4024, 5030, 5813, 7042, 10060, 11626, 14084, 17605, 20120, 23252, 28168, 29065, 35210, 40691, 46504, 58130, 70420, 81382, 116260, 140840, 162764, 203455, 232520, 325528, 406910, 813820, 1627640, 2923939, 5847878, 11695756, 14619695, 20467573, 23391512, 29239390, 40935146, 58478780, 81870292, 102337865, 116957560, 163740584, 204675730, 409351460, 818702920]

約数ペア:

[(1, 818702920), (2, 409351460), (4, 204675730), (5, 163740584), (7, 116957560), (8, 102337865), (10, 81870292), (14, 58478780), (20, 40935146), (28, 29239390), (35, 23391512), (40, 20467573), (56, 14619695), (70, 11695756), (140, 5847878), (280, 2923939), (503, 1627640), (1006, 813820), (2012, 406910), (2515, 325528), (3521, 232520), (4024, 203455), (5030, 162764), (5813, 140840), (7042, 116260), (10060, 81382), (11626, 70420), (14084, 58130), (17605, 46504), (20120, 40691), (23252, 35210), (28168, 29065)]