231769720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1553}}^1$

素因数の和:1625

約数の個数: 128

約数和(自身を含む): 657901440

約数和(自身を除く): 426131720

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 41, 52, 56, 65, 70, 82, 91, 104, 130, 140, 164, 182, 205, 260, 280, 287, 328, 364, 410, 455, 520, 533, 574, 728, 820, 910, 1066, 1148, 1435, 1553, 1640, 1820, 2132, 2296, 2665, 2870, 3106, 3640, 3731, 4264, 5330, 5740, 6212, 7462, 7765, 10660, 10871, 11480, 12424, 14924, 15530, 18655, 20189, 21320, 21742, 29848, 31060, 37310, 40378, 43484, 54355, 62120, 63673, 74620, 80756, 86968, 100945, 108710, 127346, 141323, 149240, 161512, 201890, 217420, 254692, 282646, 318365, 403780, 434840, 445711, 509384, 565292, 636730, 706615, 807560, 827749, 891422, 1130584, 1273460, 1413230, 1655498, 1782844, 2228555, 2546920, 2826460, 3310996, 3565688, 4138745, 4457110, 5652920, 5794243, 6621992, 8277490, 8914220, 11588486, 16554980, 17828440, 23176972, 28971215, 33109960, 46353944, 57942430, 115884860, 231769720]

約数ペア:

[(1, 231769720), (2, 115884860), (4, 57942430), (5, 46353944), (7, 33109960), (8, 28971215), (10, 23176972), (13, 17828440), (14, 16554980), (20, 11588486), (26, 8914220), (28, 8277490), (35, 6621992), (40, 5794243), (41, 5652920), (52, 4457110), (56, 4138745), (65, 3565688), (70, 3310996), (82, 2826460), (91, 2546920), (104, 2228555), (130, 1782844), (140, 1655498), (164, 1413230), (182, 1273460), (205, 1130584), (260, 891422), (280, 827749), (287, 807560), (328, 706615), (364, 636730), (410, 565292), (455, 509384), (520, 445711), (533, 434840), (574, 403780), (728, 318365), (820, 282646), (910, 254692), (1066, 217420), (1148, 201890), (1435, 161512), (1553, 149240), (1640, 141323), (1820, 127346), (2132, 108710), (2296, 100945), (2665, 86968), (2870, 80756), (3106, 74620), (3640, 63673), (3731, 62120), (4264, 54355), (5330, 43484), (5740, 40378), (6212, 37310), (7462, 31060), (7765, 29848), (10660, 21742), (10871, 21320), (11480, 20189), (12424, 18655), (14924, 15530)]