821501696660

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{401}}^1\times {\mathrm{1301}}^1\times {\mathrm{1831}}^1$

素因数の和:3585

約数の個数: 96

約数和(自身を含む): 1772003084544

約数和(自身を除く): 950501387884

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 401, 430, 802, 860, 1301, 1604, 1831, 2005, 2602, 3662, 4010, 5204, 6505, 7324, 8020, 9155, 13010, 17243, 18310, 26020, 34486, 36620, 55943, 68972, 78733, 86215, 111886, 157466, 172430, 223772, 279715, 314932, 344860, 393665, 521701, 559430, 734231, 787330, 1043402, 1118860, 1468462, 1574660, 2086804, 2382131, 2608505, 2936924, 3671155, 4764262, 5217010, 7342310, 9528524, 10434020, 11910655, 14684620, 22433143, 23821310, 31571933, 44866286, 47642620, 63143866, 89732572, 102431633, 112165715, 126287732, 157859665, 204863266, 224331430, 315719330, 409726532, 448662860, 512158165, 631438660, 955234531, 1024316330, 1910469062, 2048632660, 3820938124, 4776172655, 9552345310, 19104690620, 41075084833, 82150169666, 164300339332, 205375424165, 410750848330, 821501696660]

約数ペア:

[(1, 821501696660), (2, 410750848330), (4, 205375424165), (5, 164300339332), (10, 82150169666), (20, 41075084833), (43, 19104690620), (86, 9552345310), (172, 4776172655), (215, 3820938124), (401, 2048632660), (430, 1910469062), (802, 1024316330), (860, 955234531), (1301, 631438660), (1604, 512158165), (1831, 448662860), (2005, 409726532), (2602, 315719330), (3662, 224331430), (4010, 204863266), (5204, 157859665), (6505, 126287732), (7324, 112165715), (8020, 102431633), (9155, 89732572), (13010, 63143866), (17243, 47642620), (18310, 44866286), (26020, 31571933), (34486, 23821310), (36620, 22433143), (55943, 14684620), (68972, 11910655), (78733, 10434020), (86215, 9528524), (111886, 7342310), (157466, 5217010), (172430, 4764262), (223772, 3671155), (279715, 2936924), (314932, 2608505), (344860, 2382131), (393665, 2086804), (521701, 1574660), (559430, 1468462), (734231, 1118860), (787330, 1043402)]