251090080

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^2\times {\mathrm{71}}^1$

素因数の和:171

約数の個数: 144

約数和(自身を含む): 648611712

約数和(自身を除く): 397521632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 31, 32, 40, 46, 62, 71, 80, 92, 115, 124, 142, 155, 160, 184, 230, 248, 284, 310, 355, 368, 460, 496, 568, 620, 710, 713, 736, 920, 961, 992, 1136, 1240, 1420, 1426, 1633, 1840, 1922, 2201, 2272, 2480, 2840, 2852, 3266, 3565, 3680, 3844, 4402, 4805, 4960, 5680, 5704, 6532, 7130, 7688, 8165, 8804, 9610, 11005, 11360, 11408, 13064, 14260, 15376, 16330, 17608, 19220, 22010, 22103, 22816, 26128, 28520, 30752, 32660, 35216, 38440, 44020, 44206, 50623, 52256, 57040, 65320, 68231, 70432, 76880, 88040, 88412, 101246, 110515, 114080, 130640, 136462, 153760, 176080, 176824, 202492, 221030, 253115, 261280, 272924, 341155, 352160, 353648, 404984, 442060, 506230, 545848, 682310, 707296, 809968, 884120, 1012460, 1091696, 1364620, 1569313, 1619936, 1768240, 2024920, 2183392, 2729240, 3138626, 3536480, 4049840, 5458480, 6277252, 7846565, 8099680, 10916960, 12554504, 15693130, 25109008, 31386260, 50218016, 62772520, 125545040, 251090080]

約数ペア:

[(1, 251090080), (2, 125545040), (4, 62772520), (5, 50218016), (8, 31386260), (10, 25109008), (16, 15693130), (20, 12554504), (23, 10916960), (31, 8099680), (32, 7846565), (40, 6277252), (46, 5458480), (62, 4049840), (71, 3536480), (80, 3138626), (92, 2729240), (115, 2183392), (124, 2024920), (142, 1768240), (155, 1619936), (160, 1569313), (184, 1364620), (230, 1091696), (248, 1012460), (284, 884120), (310, 809968), (355, 707296), (368, 682310), (460, 545848), (496, 506230), (568, 442060), (620, 404984), (710, 353648), (713, 352160), (736, 341155), (920, 272924), (961, 261280), (992, 253115), (1136, 221030), (1240, 202492), (1420, 176824), (1426, 176080), (1633, 153760), (1840, 136462), (1922, 130640), (2201, 114080), (2272, 110515), (2480, 101246), (2840, 88412), (2852, 88040), (3266, 76880), (3565, 70432), (3680, 68231), (3844, 65320), (4402, 57040), (4805, 52256), (4960, 50623), (5680, 44206), (5704, 44020), (6532, 38440), (7130, 35216), (7688, 32660), (8165, 30752), (8804, 28520), (9610, 26128), (11005, 22816), (11360, 22103), (11408, 22010), (13064, 19220), (14260, 17608), (15376, 16330)]