20384005280

素因数分解:

$2^5\times 5^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1\times {\mathrm{19501}}^1$

素因数の和:19702

約数の個数: 96

約数和(自身を含む): 49538200320

約数和(自身を除く): 29154195040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 47, 80, 94, 139, 160, 188, 235, 278, 376, 470, 556, 695, 752, 940, 1112, 1390, 1504, 1880, 2224, 2780, 3760, 4448, 5560, 6533, 7520, 11120, 13066, 19501, 22240, 26132, 32665, 39002, 52264, 65330, 78004, 97505, 104528, 130660, 156008, 195010, 209056, 261320, 312016, 390020, 522640, 624032, 780040, 916547, 1045280, 1560080, 1833094, 2710639, 3120160, 3666188, 4582735, 5421278, 7332376, 9165470, 10842556, 13553195, 14664752, 18330940, 21685112, 27106390, 29329504, 36661880, 43370224, 54212780, 73323760, 86740448, 108425560, 127400033, 146647520, 216851120, 254800066, 433702240, 509600132, 637000165, 1019200264, 1274000330, 2038400528, 2548000660, 4076801056, 5096001320, 10192002640, 20384005280]

約数ペア:

[(1, 20384005280), (2, 10192002640), (4, 5096001320), (5, 4076801056), (8, 2548000660), (10, 2038400528), (16, 1274000330), (20, 1019200264), (32, 637000165), (40, 509600132), (47, 433702240), (80, 254800066), (94, 216851120), (139, 146647520), (160, 127400033), (188, 108425560), (235, 86740448), (278, 73323760), (376, 54212780), (470, 43370224), (556, 36661880), (695, 29329504), (752, 27106390), (940, 21685112), (1112, 18330940), (1390, 14664752), (1504, 13553195), (1880, 10842556), (2224, 9165470), (2780, 7332376), (3760, 5421278), (4448, 4582735), (5560, 3666188), (6533, 3120160), (7520, 2710639), (11120, 1833094), (13066, 1560080), (19501, 1045280), (22240, 916547), (26132, 780040), (32665, 624032), (39002, 522640), (52264, 390020), (65330, 312016), (78004, 261320), (97505, 209056), (104528, 195010), (130660, 156008)]