279908820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{397}}^1\times {\mathrm{3917}}^1$

素因数の和:4329

約数の個数: 72

約数和(自身を含む): 851412744

約数和(自身を除く): 571503924

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 397, 794, 1191, 1588, 1985, 2382, 3573, 3917, 3970, 4764, 5955, 7146, 7834, 7940, 11751, 11910, 14292, 15668, 17865, 19585, 23502, 23820, 35253, 35730, 39170, 47004, 58755, 70506, 71460, 78340, 117510, 141012, 176265, 235020, 352530, 705060, 1555049, 3110098, 4665147, 6220196, 7775245, 9330294, 13995441, 15550490, 18660588, 23325735, 27990882, 31100980, 46651470, 55981764, 69977205, 93302940, 139954410, 279908820]

約数ペア:

[(1, 279908820), (2, 139954410), (3, 93302940), (4, 69977205), (5, 55981764), (6, 46651470), (9, 31100980), (10, 27990882), (12, 23325735), (15, 18660588), (18, 15550490), (20, 13995441), (30, 9330294), (36, 7775245), (45, 6220196), (60, 4665147), (90, 3110098), (180, 1555049), (397, 705060), (794, 352530), (1191, 235020), (1588, 176265), (1985, 141012), (2382, 117510), (3573, 78340), (3917, 71460), (3970, 70506), (4764, 58755), (5955, 47004), (7146, 39170), (7834, 35730), (7940, 35253), (11751, 23820), (11910, 23502), (14292, 19585), (15668, 17865)]