84013720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{9679}}^1$

素因数の和:9728

約数の個数: 64

約数和(自身を含む): 223027200

約数和(自身を除く): 139013480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1736, 2170, 4340, 8680, 9679, 19358, 38716, 48395, 67753, 77432, 96790, 135506, 193580, 271012, 300049, 338765, 387160, 542024, 600098, 677530, 1200196, 1355060, 1500245, 2100343, 2400392, 2710120, 3000490, 4200686, 6000980, 8401372, 10501715, 12001960, 16802744, 21003430, 42006860, 84013720]

約数ペア:

[(1, 84013720), (2, 42006860), (4, 21003430), (5, 16802744), (7, 12001960), (8, 10501715), (10, 8401372), (14, 6000980), (20, 4200686), (28, 3000490), (31, 2710120), (35, 2400392), (40, 2100343), (56, 1500245), (62, 1355060), (70, 1200196), (124, 677530), (140, 600098), (155, 542024), (217, 387160), (248, 338765), (280, 300049), (310, 271012), (434, 193580), (620, 135506), (868, 96790), (1085, 77432), (1240, 67753), (1736, 48395), (2170, 38716), (4340, 19358), (8680, 9679)]