9980491760

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{50123}}^1$

素因数の和:50286

約数の個数: 80

約数和(自身を含む): 24612888960

約数和(自身を除く): 14632397200

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 131, 152, 190, 262, 304, 380, 524, 655, 760, 1048, 1310, 1520, 2096, 2489, 2620, 4978, 5240, 9956, 10480, 12445, 19912, 24890, 39824, 49780, 50123, 99560, 100246, 199120, 200492, 250615, 400984, 501230, 801968, 952337, 1002460, 1904674, 2004920, 3809348, 4009840, 4761685, 6566113, 7618696, 9523370, 13132226, 15237392, 19046740, 26264452, 32830565, 38093480, 52528904, 65661130, 76186960, 105057808, 124756147, 131322260, 249512294, 262644520, 499024588, 525289040, 623780735, 998049176, 1247561470, 1996098352, 2495122940, 4990245880, 9980491760]

約数ペア:

[(1, 9980491760), (2, 4990245880), (4, 2495122940), (5, 1996098352), (8, 1247561470), (10, 998049176), (16, 623780735), (19, 525289040), (20, 499024588), (38, 262644520), (40, 249512294), (76, 131322260), (80, 124756147), (95, 105057808), (131, 76186960), (152, 65661130), (190, 52528904), (262, 38093480), (304, 32830565), (380, 26264452), (524, 19046740), (655, 15237392), (760, 13132226), (1048, 9523370), (1310, 7618696), (1520, 6566113), (2096, 4761685), (2489, 4009840), (2620, 3809348), (4978, 2004920), (5240, 1904674), (9956, 1002460), (10480, 952337), (12445, 801968), (19912, 501230), (24890, 400984), (39824, 250615), (49780, 200492), (50123, 199120), (99560, 100246)]