291217256

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{89}}^1\times {\mathrm{103}}^1$

素因数の和:247

約数の個数: 96

約数和(自身を含む): 641908800

約数和(自身を除く): 350691544

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 89, 103, 152, 178, 206, 209, 356, 361, 412, 418, 712, 722, 824, 836, 979, 1133, 1444, 1672, 1691, 1957, 1958, 2266, 2888, 3382, 3914, 3916, 3971, 4532, 6764, 7828, 7832, 7942, 9064, 9167, 13528, 15656, 15884, 18334, 18601, 21527, 31768, 32129, 36668, 37183, 37202, 43054, 64258, 73336, 74366, 74404, 86108, 100837, 128516, 148732, 148808, 172216, 174173, 201674, 257032, 297464, 348346, 353419, 403348, 409013, 696692, 706838, 806696, 818026, 1393384, 1413676, 1636052, 1915903, 2827352, 3272104, 3309287, 3831806, 6618574, 7663612, 13237148, 15327224, 26474296, 36402157, 72804314, 145608628, 291217256]

約数ペア:

[(1, 291217256), (2, 145608628), (4, 72804314), (8, 36402157), (11, 26474296), (19, 15327224), (22, 13237148), (38, 7663612), (44, 6618574), (76, 3831806), (88, 3309287), (89, 3272104), (103, 2827352), (152, 1915903), (178, 1636052), (206, 1413676), (209, 1393384), (356, 818026), (361, 806696), (412, 706838), (418, 696692), (712, 409013), (722, 403348), (824, 353419), (836, 348346), (979, 297464), (1133, 257032), (1444, 201674), (1672, 174173), (1691, 172216), (1957, 148808), (1958, 148732), (2266, 128516), (2888, 100837), (3382, 86108), (3914, 74404), (3916, 74366), (3971, 73336), (4532, 64258), (6764, 43054), (7828, 37202), (7832, 37183), (7942, 36668), (9064, 32129), (9167, 31768), (13528, 21527), (15656, 18601), (15884, 18334)]