856876250

素因数分解:

$2^1\times 5^4\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{331}}^1$

素因数の和:481

約数の個数: 80

約数和(自身を含む): 1711327200

約数和(自身を除く): 854450950

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 109, 125, 190, 218, 250, 331, 475, 545, 625, 662, 950, 1090, 1250, 1655, 2071, 2375, 2725, 3310, 4142, 4750, 5450, 6289, 8275, 10355, 11875, 12578, 13625, 16550, 20710, 23750, 27250, 31445, 36079, 41375, 51775, 62890, 68125, 72158, 82750, 103550, 136250, 157225, 180395, 206875, 258875, 314450, 360790, 413750, 517750, 685501, 786125, 901975, 1294375, 1371002, 1572250, 1803950, 2588750, 3427505, 3930625, 4509875, 6855010, 7861250, 9019750, 17137525, 22549375, 34275050, 45098750, 85687625, 171375250, 428438125, 856876250]

約数ペア:

[(1, 856876250), (2, 428438125), (5, 171375250), (10, 85687625), (19, 45098750), (25, 34275050), (38, 22549375), (50, 17137525), (95, 9019750), (109, 7861250), (125, 6855010), (190, 4509875), (218, 3930625), (250, 3427505), (331, 2588750), (475, 1803950), (545, 1572250), (625, 1371002), (662, 1294375), (950, 901975), (1090, 786125), (1250, 685501), (1655, 517750), (2071, 413750), (2375, 360790), (2725, 314450), (3310, 258875), (4142, 206875), (4750, 180395), (5450, 157225), (6289, 136250), (8275, 103550), (10355, 82750), (11875, 72158), (12578, 68125), (13625, 62890), (16550, 51775), (20710, 41375), (23750, 36079), (27250, 31445)]