318813920

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1$

素因数の和:281

約数の個数: 192

約数和(自身を含む): 870912000

約数和(自身を除く): 552098080

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 31, 32, 34, 38, 40, 62, 68, 76, 80, 85, 95, 124, 136, 152, 155, 160, 170, 190, 199, 248, 272, 304, 310, 323, 340, 380, 398, 496, 527, 544, 589, 608, 620, 646, 680, 760, 796, 992, 995, 1054, 1178, 1240, 1292, 1360, 1520, 1592, 1615, 1990, 2108, 2356, 2480, 2584, 2635, 2720, 2945, 3040, 3184, 3230, 3383, 3781, 3980, 4216, 4712, 4960, 5168, 5270, 5890, 6169, 6368, 6460, 6766, 7562, 7960, 8432, 9424, 10013, 10336, 10540, 11780, 12338, 12920, 13532, 15124, 15920, 16864, 16915, 18848, 18905, 20026, 21080, 23560, 24676, 25840, 27064, 30248, 30845, 31840, 33830, 37810, 40052, 42160, 47120, 49352, 50065, 51680, 54128, 60496, 61690, 64277, 67660, 75620, 80104, 84320, 94240, 98704, 100130, 104873, 108256, 117211, 120992, 123380, 128554, 135320, 151240, 160208, 197408, 200260, 209746, 234422, 246760, 257108, 270640, 302480, 320416, 321385, 400520, 419492, 468844, 493520, 514216, 524365, 541280, 586055, 604960, 642770, 801040, 838984, 937688, 987040, 1028432, 1048730, 1172110, 1285540, 1602080, 1677968, 1875376, 1992587, 2056864, 2097460, 2344220, 2571080, 3355936, 3750752, 3985174, 4194920, 4688440, 5142160, 7970348, 8389840, 9376880, 9962935, 10284320, 15940696, 16779680, 18753760, 19925870, 31881392, 39851740, 63762784, 79703480, 159406960, 318813920]

約数ペア:

[(1, 318813920), (2, 159406960), (4, 79703480), (5, 63762784), (8, 39851740), (10, 31881392), (16, 19925870), (17, 18753760), (19, 16779680), (20, 15940696), (31, 10284320), (32, 9962935), (34, 9376880), (38, 8389840), (40, 7970348), (62, 5142160), (68, 4688440), (76, 4194920), (80, 3985174), (85, 3750752), (95, 3355936), (124, 2571080), (136, 2344220), (152, 2097460), (155, 2056864), (160, 1992587), (170, 1875376), (190, 1677968), (199, 1602080), (248, 1285540), (272, 1172110), (304, 1048730), (310, 1028432), (323, 987040), (340, 937688), (380, 838984), (398, 801040), (496, 642770), (527, 604960), (544, 586055), (589, 541280), (608, 524365), (620, 514216), (646, 493520), (680, 468844), (760, 419492), (796, 400520), (992, 321385), (995, 320416), (1054, 302480), (1178, 270640), (1240, 257108), (1292, 246760), (1360, 234422), (1520, 209746), (1592, 200260), (1615, 197408), (1990, 160208), (2108, 151240), (2356, 135320), (2480, 128554), (2584, 123380), (2635, 120992), (2720, 117211), (2945, 108256), (3040, 104873), (3184, 100130), (3230, 98704), (3383, 94240), (3781, 84320), (3980, 80104), (4216, 75620), (4712, 67660), (4960, 64277), (5168, 61690), (5270, 60496), (5890, 54128), (6169, 51680), (6368, 50065), (6460, 49352), (6766, 47120), (7562, 42160), (7960, 40052), (8432, 37810), (9424, 33830), (10013, 31840), (10336, 30845), (10540, 30248), (11780, 27064), (12338, 25840), (12920, 24676), (13532, 23560), (15124, 21080), (15920, 20026), (16864, 18905), (16915, 18848)]