21683949700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{720397}}^1$

素因数の和:720461

約数の個数: 72

約数和(自身を含む): 55026880832

約数和(自身を除く): 33342931132

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 43, 50, 70, 86, 100, 140, 172, 175, 215, 301, 350, 430, 602, 700, 860, 1075, 1204, 1505, 2150, 3010, 4300, 6020, 7525, 15050, 30100, 720397, 1440794, 2881588, 3601985, 5042779, 7203970, 10085558, 14407940, 18009925, 20171116, 25213895, 30977071, 36019850, 50427790, 61954142, 72039700, 100855580, 123908284, 126069475, 154885355, 216839497, 252138950, 309770710, 433678994, 504277900, 619541420, 774426775, 867357988, 1084197485, 1548853550, 2168394970, 3097707100, 4336789940, 5420987425, 10841974850, 21683949700]

約数ペア:

[(1, 21683949700), (2, 10841974850), (4, 5420987425), (5, 4336789940), (7, 3097707100), (10, 2168394970), (14, 1548853550), (20, 1084197485), (25, 867357988), (28, 774426775), (35, 619541420), (43, 504277900), (50, 433678994), (70, 309770710), (86, 252138950), (100, 216839497), (140, 154885355), (172, 126069475), (175, 123908284), (215, 100855580), (301, 72039700), (350, 61954142), (430, 50427790), (602, 36019850), (700, 30977071), (860, 25213895), (1075, 20171116), (1204, 18009925), (1505, 14407940), (2150, 10085558), (3010, 7203970), (4300, 5042779), (6020, 3601985), (7525, 2881588), (15050, 1440794), (30100, 720397)]