488191700

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{2887}}^1$

素因数の和:3009

約数の個数: 72

約数和(自身を含む): 1128052800

約数和(自身を除く): 639861100

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 89, 95, 100, 178, 190, 356, 380, 445, 475, 890, 950, 1691, 1780, 1900, 2225, 2887, 3382, 4450, 5774, 6764, 8455, 8900, 11548, 14435, 16910, 28870, 33820, 42275, 54853, 57740, 72175, 84550, 109706, 144350, 169100, 219412, 256943, 274265, 288700, 513886, 548530, 1027772, 1097060, 1284715, 1371325, 2569430, 2742650, 4881917, 5138860, 5485300, 6423575, 9763834, 12847150, 19527668, 24409585, 25694300, 48819170, 97638340, 122047925, 244095850, 488191700]

約数ペア:

[(1, 488191700), (2, 244095850), (4, 122047925), (5, 97638340), (10, 48819170), (19, 25694300), (20, 24409585), (25, 19527668), (38, 12847150), (50, 9763834), (76, 6423575), (89, 5485300), (95, 5138860), (100, 4881917), (178, 2742650), (190, 2569430), (356, 1371325), (380, 1284715), (445, 1097060), (475, 1027772), (890, 548530), (950, 513886), (1691, 288700), (1780, 274265), (1900, 256943), (2225, 219412), (2887, 169100), (3382, 144350), (4450, 109706), (5774, 84550), (6764, 72175), (8455, 57740), (8900, 54853), (11548, 42275), (14435, 33820), (16910, 28870)]