155989240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{397}}^1$

素因数の和:485

約数の個数: 128

約数和(自身を含む): 412646400

約数和(自身を除く): 256657160

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 38, 40, 44, 47, 55, 76, 88, 94, 95, 110, 152, 188, 190, 209, 220, 235, 376, 380, 397, 418, 440, 470, 517, 760, 794, 836, 893, 940, 1034, 1045, 1588, 1672, 1786, 1880, 1985, 2068, 2090, 2585, 3176, 3572, 3970, 4136, 4180, 4367, 4465, 5170, 7144, 7543, 7940, 8360, 8734, 8930, 9823, 10340, 15086, 15880, 17468, 17860, 18659, 19646, 20680, 21835, 30172, 34936, 35720, 37318, 37715, 39292, 43670, 49115, 60344, 74636, 75430, 78584, 82973, 87340, 93295, 98230, 149272, 150860, 165946, 174680, 186590, 196460, 205249, 301720, 331892, 354521, 373180, 392920, 410498, 414865, 663784, 709042, 746360, 820996, 829730, 1026245, 1418084, 1641992, 1659460, 1772605, 2052490, 2836168, 3318920, 3545210, 3899731, 4104980, 7090420, 7799462, 8209960, 14180840, 15598924, 19498655, 31197848, 38997310, 77994620, 155989240]

約数ペア:

[(1, 155989240), (2, 77994620), (4, 38997310), (5, 31197848), (8, 19498655), (10, 15598924), (11, 14180840), (19, 8209960), (20, 7799462), (22, 7090420), (38, 4104980), (40, 3899731), (44, 3545210), (47, 3318920), (55, 2836168), (76, 2052490), (88, 1772605), (94, 1659460), (95, 1641992), (110, 1418084), (152, 1026245), (188, 829730), (190, 820996), (209, 746360), (220, 709042), (235, 663784), (376, 414865), (380, 410498), (397, 392920), (418, 373180), (440, 354521), (470, 331892), (517, 301720), (760, 205249), (794, 196460), (836, 186590), (893, 174680), (940, 165946), (1034, 150860), (1045, 149272), (1588, 98230), (1672, 93295), (1786, 87340), (1880, 82973), (1985, 78584), (2068, 75430), (2090, 74636), (2585, 60344), (3176, 49115), (3572, 43670), (3970, 39292), (4136, 37715), (4180, 37318), (4367, 35720), (4465, 34936), (5170, 30172), (7144, 21835), (7543, 20680), (7940, 19646), (8360, 18659), (8734, 17860), (8930, 17468), (9823, 15880), (10340, 15086)]