20852880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{269}}^1$

素因数の和:321

約数の個数: 160

約数和(自身を含む): 72316800

約数和(自身を除く): 51463920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 19, 20, 24, 30, 34, 38, 40, 48, 51, 57, 60, 68, 76, 80, 85, 95, 102, 114, 120, 136, 152, 170, 190, 204, 228, 240, 255, 269, 272, 285, 304, 323, 340, 380, 408, 456, 510, 538, 570, 646, 680, 760, 807, 816, 912, 969, 1020, 1076, 1140, 1292, 1345, 1360, 1520, 1614, 1615, 1938, 2040, 2152, 2280, 2584, 2690, 3228, 3230, 3876, 4035, 4080, 4304, 4560, 4573, 4845, 5111, 5168, 5380, 6456, 6460, 7752, 8070, 9146, 9690, 10222, 10760, 12912, 12920, 13719, 15333, 15504, 16140, 18292, 19380, 20444, 21520, 22865, 25555, 25840, 27438, 30666, 32280, 36584, 38760, 40888, 45730, 51110, 54876, 61332, 64560, 68595, 73168, 76665, 77520, 81776, 86887, 91460, 102220, 109752, 122664, 137190, 153330, 173774, 182920, 204440, 219504, 245328, 260661, 274380, 306660, 347548, 365840, 408880, 434435, 521322, 548760, 613320, 695096, 868870, 1042644, 1097520, 1226640, 1303305, 1390192, 1737740, 2085288, 2606610, 3475480, 4170576, 5213220, 6950960, 10426440, 20852880]

約数ペア:

[(1, 20852880), (2, 10426440), (3, 6950960), (4, 5213220), (5, 4170576), (6, 3475480), (8, 2606610), (10, 2085288), (12, 1737740), (15, 1390192), (16, 1303305), (17, 1226640), (19, 1097520), (20, 1042644), (24, 868870), (30, 695096), (34, 613320), (38, 548760), (40, 521322), (48, 434435), (51, 408880), (57, 365840), (60, 347548), (68, 306660), (76, 274380), (80, 260661), (85, 245328), (95, 219504), (102, 204440), (114, 182920), (120, 173774), (136, 153330), (152, 137190), (170, 122664), (190, 109752), (204, 102220), (228, 91460), (240, 86887), (255, 81776), (269, 77520), (272, 76665), (285, 73168), (304, 68595), (323, 64560), (340, 61332), (380, 54876), (408, 51110), (456, 45730), (510, 40888), (538, 38760), (570, 36584), (646, 32280), (680, 30666), (760, 27438), (807, 25840), (816, 25555), (912, 22865), (969, 21520), (1020, 20444), (1076, 19380), (1140, 18292), (1292, 16140), (1345, 15504), (1360, 15333), (1520, 13719), (1614, 12920), (1615, 12912), (1938, 10760), (2040, 10222), (2152, 9690), (2280, 9146), (2584, 8070), (2690, 7752), (3228, 6460), (3230, 6456), (3876, 5380), (4035, 5168), (4080, 5111), (4304, 4845), (4560, 4573)]