78997100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{8681}}^1$

素因数の和:8715

約数の個数: 72

約数和(自身を含む): 211007328

約数和(自身を除く): 132010228

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 25, 26, 28, 35, 50, 52, 65, 70, 91, 100, 130, 140, 175, 182, 260, 325, 350, 364, 455, 650, 700, 910, 1300, 1820, 2275, 4550, 8681, 9100, 17362, 34724, 43405, 60767, 86810, 112853, 121534, 173620, 217025, 225706, 243068, 303835, 434050, 451412, 564265, 607670, 789971, 868100, 1128530, 1215340, 1519175, 1579942, 2257060, 2821325, 3038350, 3159884, 3949855, 5642650, 6076700, 7899710, 11285300, 15799420, 19749275, 39498550, 78997100]

約数ペア:

[(1, 78997100), (2, 39498550), (4, 19749275), (5, 15799420), (7, 11285300), (10, 7899710), (13, 6076700), (14, 5642650), (20, 3949855), (25, 3159884), (26, 3038350), (28, 2821325), (35, 2257060), (50, 1579942), (52, 1519175), (65, 1215340), (70, 1128530), (91, 868100), (100, 789971), (130, 607670), (140, 564265), (175, 451412), (182, 434050), (260, 303835), (325, 243068), (350, 225706), (364, 217025), (455, 173620), (650, 121534), (700, 112853), (910, 86810), (1300, 60767), (1820, 43405), (2275, 34724), (4550, 17362), (8681, 9100)]