28621320

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2621}}^1$

素因数の和:2655

約数の個数: 128

約数和(自身を含む): 105719040

約数和(自身を除く): 77097720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 52, 56, 60, 65, 70, 78, 84, 91, 104, 105, 120, 130, 140, 156, 168, 182, 195, 210, 260, 273, 280, 312, 364, 390, 420, 455, 520, 546, 728, 780, 840, 910, 1092, 1365, 1560, 1820, 2184, 2621, 2730, 3640, 5242, 5460, 7863, 10484, 10920, 13105, 15726, 18347, 20968, 26210, 31452, 34073, 36694, 39315, 52420, 55041, 62904, 68146, 73388, 78630, 91735, 102219, 104840, 110082, 136292, 146776, 157260, 170365, 183470, 204438, 220164, 238511, 272584, 275205, 314520, 340730, 366940, 408876, 440328, 477022, 511095, 550410, 681460, 715533, 733880, 817752, 954044, 1022190, 1100820, 1192555, 1362920, 1431066, 1908088, 2044380, 2201640, 2385110, 2862132, 3577665, 4088760, 4770220, 5724264, 7155330, 9540440, 14310660, 28621320]

約数ペア:

[(1, 28621320), (2, 14310660), (3, 9540440), (4, 7155330), (5, 5724264), (6, 4770220), (7, 4088760), (8, 3577665), (10, 2862132), (12, 2385110), (13, 2201640), (14, 2044380), (15, 1908088), (20, 1431066), (21, 1362920), (24, 1192555), (26, 1100820), (28, 1022190), (30, 954044), (35, 817752), (39, 733880), (40, 715533), (42, 681460), (52, 550410), (56, 511095), (60, 477022), (65, 440328), (70, 408876), (78, 366940), (84, 340730), (91, 314520), (104, 275205), (105, 272584), (120, 238511), (130, 220164), (140, 204438), (156, 183470), (168, 170365), (182, 157260), (195, 146776), (210, 136292), (260, 110082), (273, 104840), (280, 102219), (312, 91735), (364, 78630), (390, 73388), (420, 68146), (455, 62904), (520, 55041), (546, 52420), (728, 39315), (780, 36694), (840, 34073), (910, 31452), (1092, 26210), (1365, 20968), (1560, 18347), (1820, 15726), (2184, 13105), (2621, 10920), (2730, 10484), (3640, 7863), (5242, 5460)]