20795209386

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{331}}^1\times {\mathrm{661}}^1$

素因数の和:1108

約数の個数: 128

約数和(自身を含む): 49963057152

約数和(自身を除く): 29167847766

約数列:

[1, 2, 3, 6, 7, 14, 21, 31, 42, 62, 73, 93, 146, 186, 217, 219, 331, 434, 438, 511, 651, 661, 662, 993, 1022, 1302, 1322, 1533, 1983, 1986, 2263, 2317, 3066, 3966, 4526, 4627, 4634, 6789, 6951, 9254, 10261, 13578, 13881, 13902, 15841, 20491, 20522, 24163, 27762, 30783, 31682, 40982, 47523, 48253, 48326, 61473, 61566, 71827, 72489, 95046, 96506, 122946, 143437, 143654, 144759, 144978, 169141, 215481, 218791, 286874, 289518, 337771, 338282, 430311, 430962, 437582, 507423, 656373, 675542, 749053, 860622, 1013313, 1014846, 1312746, 1495843, 1498106, 1531537, 2026626, 2247159, 2991686, 3063074, 4487529, 4494318, 4594611, 5243371, 6782521, 8975058, 9189222, 10470901, 10486742, 13565042, 15730113, 15971743, 20347563, 20941802, 31412703, 31460226, 31943486, 40695126, 47477647, 47915229, 62825406, 94955294, 95830458, 111802201, 142432941, 223604402, 284865882, 335406603, 495124033, 670813206, 990248066, 1485372099, 2970744198, 3465868231, 6931736462, 10397604693, 20795209386]

約数ペア:

[(1, 20795209386), (2, 10397604693), (3, 6931736462), (6, 3465868231), (7, 2970744198), (14, 1485372099), (21, 990248066), (31, 670813206), (42, 495124033), (62, 335406603), (73, 284865882), (93, 223604402), (146, 142432941), (186, 111802201), (217, 95830458), (219, 94955294), (331, 62825406), (434, 47915229), (438, 47477647), (511, 40695126), (651, 31943486), (661, 31460226), (662, 31412703), (993, 20941802), (1022, 20347563), (1302, 15971743), (1322, 15730113), (1533, 13565042), (1983, 10486742), (1986, 10470901), (2263, 9189222), (2317, 8975058), (3066, 6782521), (3966, 5243371), (4526, 4594611), (4627, 4494318), (4634, 4487529), (6789, 3063074), (6951, 2991686), (9254, 2247159), (10261, 2026626), (13578, 1531537), (13881, 1498106), (13902, 1495843), (15841, 1312746), (20491, 1014846), (20522, 1013313), (24163, 860622), (27762, 749053), (30783, 675542), (31682, 656373), (40982, 507423), (47523, 437582), (48253, 430962), (48326, 430311), (61473, 338282), (61566, 337771), (71827, 289518), (72489, 286874), (95046, 218791), (96506, 215481), (122946, 169141), (143437, 144978), (143654, 144759)]