401722980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{313}}^1\times {\mathrm{21391}}^1$

素因数の和:21716

約数の個数: 48

約数和(自身を含む): 1128470784

約数和(自身を除く): 726747804

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 313, 626, 939, 1252, 1565, 1878, 3130, 3756, 4695, 6260, 9390, 18780, 21391, 42782, 64173, 85564, 106955, 128346, 213910, 256692, 320865, 427820, 641730, 1283460, 6695383, 13390766, 20086149, 26781532, 33476915, 40172298, 66953830, 80344596, 100430745, 133907660, 200861490, 401722980]

約数ペア:

[(1, 401722980), (2, 200861490), (3, 133907660), (4, 100430745), (5, 80344596), (6, 66953830), (10, 40172298), (12, 33476915), (15, 26781532), (20, 20086149), (30, 13390766), (60, 6695383), (313, 1283460), (626, 641730), (939, 427820), (1252, 320865), (1565, 256692), (1878, 213910), (3130, 128346), (3756, 106955), (4695, 85564), (6260, 64173), (9390, 42782), (18780, 21391)]