79678900

素因数分解:

$2^2\times 5^2\times 7^3\times {\mathrm{23}}^1\times {\mathrm{101}}^1$

素因数の和:159

約数の個数: 144

約数和(自身を含む): 212486400

約数和(自身を除く): 132807500

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 25, 28, 35, 46, 49, 50, 70, 92, 98, 100, 101, 115, 140, 161, 175, 196, 202, 230, 245, 322, 343, 350, 404, 460, 490, 505, 575, 644, 686, 700, 707, 805, 980, 1010, 1127, 1150, 1225, 1372, 1414, 1610, 1715, 2020, 2254, 2300, 2323, 2450, 2525, 2828, 3220, 3430, 3535, 4025, 4508, 4646, 4900, 4949, 5050, 5635, 6860, 7070, 7889, 8050, 8575, 9292, 9898, 10100, 11270, 11615, 14140, 15778, 16100, 16261, 17150, 17675, 19796, 22540, 23230, 24745, 28175, 31556, 32522, 34300, 34643, 35350, 39445, 46460, 49490, 56350, 58075, 65044, 69286, 70700, 78890, 81305, 98980, 112700, 113827, 116150, 123725, 138572, 157780, 162610, 173215, 197225, 227654, 232300, 247450, 325220, 346430, 394450, 406525, 455308, 494900, 569135, 692860, 788900, 796789, 813050, 866075, 1138270, 1593578, 1626100, 1732150, 2276540, 2845675, 3187156, 3464300, 3983945, 5691350, 7967890, 11382700, 15935780, 19919725, 39839450, 79678900]

約数ペア:

[(1, 79678900), (2, 39839450), (4, 19919725), (5, 15935780), (7, 11382700), (10, 7967890), (14, 5691350), (20, 3983945), (23, 3464300), (25, 3187156), (28, 2845675), (35, 2276540), (46, 1732150), (49, 1626100), (50, 1593578), (70, 1138270), (92, 866075), (98, 813050), (100, 796789), (101, 788900), (115, 692860), (140, 569135), (161, 494900), (175, 455308), (196, 406525), (202, 394450), (230, 346430), (245, 325220), (322, 247450), (343, 232300), (350, 227654), (404, 197225), (460, 173215), (490, 162610), (505, 157780), (575, 138572), (644, 123725), (686, 116150), (700, 113827), (707, 112700), (805, 98980), (980, 81305), (1010, 78890), (1127, 70700), (1150, 69286), (1225, 65044), (1372, 58075), (1414, 56350), (1610, 49490), (1715, 46460), (2020, 39445), (2254, 35350), (2300, 34643), (2323, 34300), (2450, 32522), (2525, 31556), (2828, 28175), (3220, 24745), (3430, 23230), (3535, 22540), (4025, 19796), (4508, 17675), (4646, 17150), (4900, 16261), (4949, 16100), (5050, 15778), (5635, 14140), (6860, 11615), (7070, 11270), (7889, 10100), (8050, 9898), (8575, 9292)]