1981878080

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{68059}}^1$

素因数の和:68096

約数の個数: 112

約数和(自身を含む): 5808512640

約数和(自身を除く): 3826634560

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 64, 65, 70, 80, 91, 104, 112, 130, 140, 160, 182, 208, 224, 260, 280, 320, 364, 416, 448, 455, 520, 560, 728, 832, 910, 1040, 1120, 1456, 1820, 2080, 2240, 2912, 3640, 4160, 5824, 7280, 14560, 29120, 68059, 136118, 272236, 340295, 476413, 544472, 680590, 884767, 952826, 1088944, 1361180, 1769534, 1905652, 2177888, 2382065, 2722360, 3539068, 3811304, 4355776, 4423835, 4764130, 5444720, 6193369, 7078136, 7622608, 8847670, 9528260, 10889440, 12386738, 14156272, 15245216, 17695340, 19056520, 21778880, 24773476, 28312544, 30490432, 30966845, 35390680, 38113040, 49546952, 56625088, 61933690, 70781360, 76226080, 99093904, 123867380, 141562720, 152452160, 198187808, 247734760, 283125440, 396375616, 495469520, 990939040, 1981878080]

約数ペア:

[(1, 1981878080), (2, 990939040), (4, 495469520), (5, 396375616), (7, 283125440), (8, 247734760), (10, 198187808), (13, 152452160), (14, 141562720), (16, 123867380), (20, 99093904), (26, 76226080), (28, 70781360), (32, 61933690), (35, 56625088), (40, 49546952), (52, 38113040), (56, 35390680), (64, 30966845), (65, 30490432), (70, 28312544), (80, 24773476), (91, 21778880), (104, 19056520), (112, 17695340), (130, 15245216), (140, 14156272), (160, 12386738), (182, 10889440), (208, 9528260), (224, 8847670), (260, 7622608), (280, 7078136), (320, 6193369), (364, 5444720), (416, 4764130), (448, 4423835), (455, 4355776), (520, 3811304), (560, 3539068), (728, 2722360), (832, 2382065), (910, 2177888), (1040, 1905652), (1120, 1769534), (1456, 1361180), (1820, 1088944), (2080, 952826), (2240, 884767), (2912, 680590), (3640, 544472), (4160, 476413), (5824, 340295), (7280, 272236), (14560, 136118), (29120, 68059)]