21407770831100

素因数分解:

$2^2\times 5^2\times {\mathrm{79}}^1\times {\mathrm{389}}^1\times {\mathrm{1783}}^1\times {\mathrm{3907}}^1$

素因数の和:6172

約数の個数: 144

約数和(自身を含む): 47202362188800

約数和(自身を除く): 25794591357700

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 79, 100, 158, 316, 389, 395, 778, 790, 1556, 1580, 1783, 1945, 1975, 3566, 3890, 3907, 3950, 7132, 7780, 7814, 7900, 8915, 9725, 15628, 17830, 19450, 19535, 30731, 35660, 38900, 39070, 44575, 61462, 78140, 89150, 97675, 122924, 140857, 153655, 178300, 195350, 281714, 307310, 308653, 390700, 563428, 614620, 617306, 693587, 704285, 768275, 1234612, 1387174, 1408570, 1519823, 1536550, 1543265, 2774348, 2817140, 3039646, 3073100, 3086530, 3467935, 3521425, 6079292, 6173060, 6935870, 6966181, 7042850, 7599115, 7716325, 13871740, 13932362, 14085700, 15198230, 15432650, 17339675, 27864724, 30396460, 30865300, 34679350, 34830905, 37995575, 54793373, 69358700, 69661810, 75991150, 109586746, 120066017, 139323620, 151982300, 174154525, 219173492, 240132034, 273966865, 348309050, 480264068, 547933730, 550328299, 600330085, 696618100, 1095867460, 1100656598, 1200660170, 1369834325, 2201313196, 2401320340, 2709844409, 2739668650, 2751641495, 3001650425, 5419688818, 5479337300, 5503282990, 6003300850, 10839377636, 11006565980, 12006601700, 13549222045, 13758207475, 27098444090, 27516414950, 54196888180, 55032829900, 67746110225, 135492220450, 214077708311, 270984440900, 428155416622, 856310833244, 1070388541555, 2140777083110, 4281554166220, 5351942707775, 10703885415550, 21407770831100]

約数ペア:

[(1, 21407770831100), (2, 10703885415550), (4, 5351942707775), (5, 4281554166220), (10, 2140777083110), (20, 1070388541555), (25, 856310833244), (50, 428155416622), (79, 270984440900), (100, 214077708311), (158, 135492220450), (316, 67746110225), (389, 55032829900), (395, 54196888180), (778, 27516414950), (790, 27098444090), (1556, 13758207475), (1580, 13549222045), (1783, 12006601700), (1945, 11006565980), (1975, 10839377636), (3566, 6003300850), (3890, 5503282990), (3907, 5479337300), (3950, 5419688818), (7132, 3001650425), (7780, 2751641495), (7814, 2739668650), (7900, 2709844409), (8915, 2401320340), (9725, 2201313196), (15628, 1369834325), (17830, 1200660170), (19450, 1100656598), (19535, 1095867460), (30731, 696618100), (35660, 600330085), (38900, 550328299), (39070, 547933730), (44575, 480264068), (61462, 348309050), (78140, 273966865), (89150, 240132034), (97675, 219173492), (122924, 174154525), (140857, 151982300), (153655, 139323620), (178300, 120066017), (195350, 109586746), (281714, 75991150), (307310, 69661810), (308653, 69358700), (390700, 54793373), (563428, 37995575), (614620, 34830905), (617306, 34679350), (693587, 30865300), (704285, 30396460), (768275, 27864724), (1234612, 17339675), (1387174, 15432650), (1408570, 15198230), (1519823, 14085700), (1536550, 13932362), (1543265, 13871740), (2774348, 7716325), (2817140, 7599115), (3039646, 7042850), (3073100, 6966181), (3086530, 6935870), (3467935, 6173060), (3521425, 6079292)]