278510820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{21391}}^1$

素因数の和:21441

約数の個数: 96

約数和(自身を含む): 920027136

約数和(自身を除く): 641516316

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 31, 35, 42, 60, 62, 70, 84, 93, 105, 124, 140, 155, 186, 210, 217, 310, 372, 420, 434, 465, 620, 651, 868, 930, 1085, 1302, 1860, 2170, 2604, 3255, 4340, 6510, 13020, 21391, 42782, 64173, 85564, 106955, 128346, 149737, 213910, 256692, 299474, 320865, 427820, 449211, 598948, 641730, 663121, 748685, 898422, 1283460, 1326242, 1497370, 1796844, 1989363, 2246055, 2652484, 2994740, 3315605, 3978726, 4492110, 4641847, 6631210, 7957452, 8984220, 9283694, 9946815, 13262420, 13925541, 18567388, 19893630, 23209235, 27851082, 39787260, 46418470, 55702164, 69627705, 92836940, 139255410, 278510820]

約数ペア:

[(1, 278510820), (2, 139255410), (3, 92836940), (4, 69627705), (5, 55702164), (6, 46418470), (7, 39787260), (10, 27851082), (12, 23209235), (14, 19893630), (15, 18567388), (20, 13925541), (21, 13262420), (28, 9946815), (30, 9283694), (31, 8984220), (35, 7957452), (42, 6631210), (60, 4641847), (62, 4492110), (70, 3978726), (84, 3315605), (93, 2994740), (105, 2652484), (124, 2246055), (140, 1989363), (155, 1796844), (186, 1497370), (210, 1326242), (217, 1283460), (310, 898422), (372, 748685), (420, 663121), (434, 641730), (465, 598948), (620, 449211), (651, 427820), (868, 320865), (930, 299474), (1085, 256692), (1302, 213910), (1860, 149737), (2170, 128346), (2604, 106955), (3255, 85564), (4340, 64173), (6510, 42782), (13020, 21391)]