31521960

素因数分解:

$2^3\times 3^6\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1$

素因数の和:99

約数の個数: 224

約数和(自身を含む): 113322240

約数和(自身を除く): 81800280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 27, 30, 36, 40, 45, 46, 47, 54, 60, 69, 72, 81, 90, 92, 94, 108, 115, 120, 135, 138, 141, 162, 180, 184, 188, 207, 216, 230, 235, 243, 270, 276, 282, 324, 345, 360, 376, 405, 414, 423, 460, 470, 486, 540, 552, 564, 621, 648, 690, 705, 729, 810, 828, 846, 920, 940, 972, 1035, 1080, 1081, 1128, 1215, 1242, 1269, 1380, 1410, 1458, 1620, 1656, 1692, 1863, 1880, 1944, 2070, 2115, 2162, 2430, 2484, 2538, 2760, 2820, 2916, 3105, 3240, 3243, 3384, 3645, 3726, 3807, 4140, 4230, 4324, 4860, 4968, 5076, 5405, 5589, 5640, 5832, 6210, 6345, 6486, 7290, 7452, 7614, 8280, 8460, 8648, 9315, 9720, 9729, 10152, 10810, 11178, 11421, 12420, 12690, 12972, 14580, 14904, 15228, 16215, 16767, 16920, 18630, 19035, 19458, 21620, 22356, 22842, 24840, 25380, 25944, 27945, 29160, 29187, 30456, 32430, 33534, 34263, 37260, 38070, 38916, 43240, 44712, 45684, 48645, 50760, 55890, 57105, 58374, 64860, 67068, 68526, 74520, 76140, 77832, 83835, 87561, 91368, 97290, 111780, 114210, 116748, 129720, 134136, 137052, 145935, 152280, 167670, 171315, 175122, 194580, 223560, 228420, 233496, 262683, 274104, 291870, 335340, 342630, 350244, 389160, 437805, 456840, 525366, 583740, 670680, 685260, 700488, 788049, 875610, 1050732, 1167480, 1313415, 1370520, 1576098, 1751220, 2101464, 2626830, 3152196, 3502440, 3940245, 5253660, 6304392, 7880490, 10507320, 15760980, 31521960]

約数ペア:

[(1, 31521960), (2, 15760980), (3, 10507320), (4, 7880490), (5, 6304392), (6, 5253660), (8, 3940245), (9, 3502440), (10, 3152196), (12, 2626830), (15, 2101464), (18, 1751220), (20, 1576098), (23, 1370520), (24, 1313415), (27, 1167480), (30, 1050732), (36, 875610), (40, 788049), (45, 700488), (46, 685260), (47, 670680), (54, 583740), (60, 525366), (69, 456840), (72, 437805), (81, 389160), (90, 350244), (92, 342630), (94, 335340), (108, 291870), (115, 274104), (120, 262683), (135, 233496), (138, 228420), (141, 223560), (162, 194580), (180, 175122), (184, 171315), (188, 167670), (207, 152280), (216, 145935), (230, 137052), (235, 134136), (243, 129720), (270, 116748), (276, 114210), (282, 111780), (324, 97290), (345, 91368), (360, 87561), (376, 83835), (405, 77832), (414, 76140), (423, 74520), (460, 68526), (470, 67068), (486, 64860), (540, 58374), (552, 57105), (564, 55890), (621, 50760), (648, 48645), (690, 45684), (705, 44712), (729, 43240), (810, 38916), (828, 38070), (846, 37260), (920, 34263), (940, 33534), (972, 32430), (1035, 30456), (1080, 29187), (1081, 29160), (1128, 27945), (1215, 25944), (1242, 25380), (1269, 24840), (1380, 22842), (1410, 22356), (1458, 21620), (1620, 19458), (1656, 19035), (1692, 18630), (1863, 16920), (1880, 16767), (1944, 16215), (2070, 15228), (2115, 14904), (2162, 14580), (2430, 12972), (2484, 12690), (2538, 12420), (2760, 11421), (2820, 11178), (2916, 10810), (3105, 10152), (3240, 9729), (3243, 9720), (3384, 9315), (3645, 8648), (3726, 8460), (3807, 8280), (4140, 7614), (4230, 7452), (4324, 7290), (4860, 6486), (4968, 6345), (5076, 6210), (5405, 5832), (5589, 5640)]