1555753820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{157}}^1\times {\mathrm{293}}^1$

素因数の和:567

約数の個数: 96

約数和(自身を含む): 3511771200

約数和(自身を除く): 1956017380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 89, 95, 157, 178, 190, 293, 314, 356, 380, 445, 586, 628, 785, 890, 1172, 1465, 1570, 1691, 1780, 2930, 2983, 3140, 3382, 5567, 5860, 5966, 6764, 8455, 11134, 11932, 13973, 14915, 16910, 22268, 26077, 27835, 27946, 29830, 33820, 46001, 52154, 55670, 55892, 59660, 69865, 92002, 104308, 111340, 130385, 139730, 184004, 230005, 260770, 265487, 279460, 460010, 495463, 521540, 530974, 874019, 920020, 990926, 1061948, 1327435, 1748038, 1981852, 2477315, 2654870, 3496076, 4094089, 4370095, 4954630, 5309740, 8188178, 8740190, 9909260, 16376356, 17480380, 20470445, 40940890, 77787691, 81881780, 155575382, 311150764, 388938455, 777876910, 1555753820]

約数ペア:

[(1, 1555753820), (2, 777876910), (4, 388938455), (5, 311150764), (10, 155575382), (19, 81881780), (20, 77787691), (38, 40940890), (76, 20470445), (89, 17480380), (95, 16376356), (157, 9909260), (178, 8740190), (190, 8188178), (293, 5309740), (314, 4954630), (356, 4370095), (380, 4094089), (445, 3496076), (586, 2654870), (628, 2477315), (785, 1981852), (890, 1748038), (1172, 1327435), (1465, 1061948), (1570, 990926), (1691, 920020), (1780, 874019), (2930, 530974), (2983, 521540), (3140, 495463), (3382, 460010), (5567, 279460), (5860, 265487), (5966, 260770), (6764, 230005), (8455, 184004), (11134, 139730), (11932, 130385), (13973, 111340), (14915, 104308), (16910, 92002), (22268, 69865), (26077, 59660), (27835, 55892), (27946, 55670), (29830, 52154), (33820, 46001)]