278319636

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{641}}^1\times {\mathrm{1723}}^1$

素因数の和:2381

約数の個数: 72

約数和(自身を含む): 805756224

約数和(自身を除く): 527436588

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 641, 1282, 1723, 1923, 2564, 3446, 3846, 4487, 5169, 5769, 6892, 7692, 8974, 10338, 11538, 12061, 13461, 15507, 17948, 20676, 23076, 24122, 26922, 31014, 36183, 40383, 48244, 53844, 62028, 72366, 80766, 108549, 144732, 161532, 217098, 434196, 1104443, 2208886, 3313329, 4417772, 6626658, 7731101, 9939987, 13253316, 15462202, 19879974, 23193303, 30924404, 39759948, 46386606, 69579909, 92773212, 139159818, 278319636]

約数ペア:

[(1, 278319636), (2, 139159818), (3, 92773212), (4, 69579909), (6, 46386606), (7, 39759948), (9, 30924404), (12, 23193303), (14, 19879974), (18, 15462202), (21, 13253316), (28, 9939987), (36, 7731101), (42, 6626658), (63, 4417772), (84, 3313329), (126, 2208886), (252, 1104443), (641, 434196), (1282, 217098), (1723, 161532), (1923, 144732), (2564, 108549), (3446, 80766), (3846, 72366), (4487, 62028), (5169, 53844), (5769, 48244), (6892, 40383), (7692, 36183), (8974, 31014), (10338, 26922), (11538, 24122), (12061, 23076), (13461, 20676), (15507, 17948)]