28417948

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:143

約数の個数: 72

約数和(自身を含む): 59690624

約数和(自身を除く): 31272676

約数列:

[1, 2, 4, 13, 17, 26, 31, 34, 52, 61, 62, 68, 122, 124, 221, 244, 289, 403, 442, 527, 578, 793, 806, 884, 1037, 1054, 1156, 1586, 1612, 1891, 2074, 2108, 3172, 3757, 3782, 4148, 6851, 7514, 7564, 8959, 13481, 13702, 15028, 17629, 17918, 24583, 26962, 27404, 32147, 35258, 35836, 49166, 53924, 64294, 70516, 98332, 116467, 128588, 229177, 232934, 417911, 458354, 465868, 546499, 835822, 916708, 1092998, 1671644, 2185996, 7104487, 14208974, 28417948]

約数ペア:

[(1, 28417948), (2, 14208974), (4, 7104487), (13, 2185996), (17, 1671644), (26, 1092998), (31, 916708), (34, 835822), (52, 546499), (61, 465868), (62, 458354), (68, 417911), (122, 232934), (124, 229177), (221, 128588), (244, 116467), (289, 98332), (403, 70516), (442, 64294), (527, 53924), (578, 49166), (793, 35836), (806, 35258), (884, 32147), (1037, 27404), (1054, 26962), (1156, 24583), (1586, 17918), (1612, 17629), (1891, 15028), (2074, 13702), (2108, 13481), (3172, 8959), (3757, 7564), (3782, 7514), (4148, 6851)]