9999080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1$

素因数の和:139

約数の個数: 128

約数和(自身を含む): 28788480

約数和(自身を除く): 18789400

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 41, 52, 56, 65, 67, 70, 82, 91, 104, 130, 134, 140, 164, 182, 205, 260, 268, 280, 287, 328, 335, 364, 410, 455, 469, 520, 533, 536, 574, 670, 728, 820, 871, 910, 938, 1066, 1148, 1340, 1435, 1640, 1742, 1820, 1876, 2132, 2296, 2345, 2665, 2680, 2747, 2870, 3484, 3640, 3731, 3752, 4264, 4355, 4690, 5330, 5494, 5740, 6097, 6968, 7462, 8710, 9380, 10660, 10988, 11480, 12194, 13735, 14924, 17420, 18655, 18760, 19229, 21320, 21976, 24388, 27470, 29848, 30485, 34840, 35711, 37310, 38458, 48776, 54940, 60970, 71422, 74620, 76916, 96145, 109880, 121940, 142844, 149240, 153832, 178555, 192290, 243880, 249977, 285688, 357110, 384580, 499954, 714220, 769160, 999908, 1249885, 1428440, 1999816, 2499770, 4999540, 9999080]

約数ペア:

[(1, 9999080), (2, 4999540), (4, 2499770), (5, 1999816), (7, 1428440), (8, 1249885), (10, 999908), (13, 769160), (14, 714220), (20, 499954), (26, 384580), (28, 357110), (35, 285688), (40, 249977), (41, 243880), (52, 192290), (56, 178555), (65, 153832), (67, 149240), (70, 142844), (82, 121940), (91, 109880), (104, 96145), (130, 76916), (134, 74620), (140, 71422), (164, 60970), (182, 54940), (205, 48776), (260, 38458), (268, 37310), (280, 35711), (287, 34840), (328, 30485), (335, 29848), (364, 27470), (410, 24388), (455, 21976), (469, 21320), (520, 19229), (533, 18760), (536, 18655), (574, 17420), (670, 14924), (728, 13735), (820, 12194), (871, 11480), (910, 10988), (938, 10660), (1066, 9380), (1148, 8710), (1340, 7462), (1435, 6968), (1640, 6097), (1742, 5740), (1820, 5494), (1876, 5330), (2132, 4690), (2296, 4355), (2345, 4264), (2665, 3752), (2680, 3731), (2747, 3640), (2870, 3484)]