28538692

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{163}}^1$

素因数の和:237

約数の個数: 72

約数和(自身を含む): 63865536

約数和(自身を除く): 35326844

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 37, 52, 74, 91, 148, 163, 169, 182, 259, 326, 338, 364, 481, 518, 652, 676, 962, 1036, 1141, 1183, 1924, 2119, 2282, 2366, 3367, 4238, 4564, 4732, 6031, 6253, 6734, 8476, 12062, 12506, 13468, 14833, 24124, 25012, 27547, 29666, 42217, 43771, 55094, 59332, 78403, 84434, 87542, 110188, 156806, 168868, 175084, 192829, 313612, 385658, 548821, 771316, 1019239, 1097642, 2038478, 2195284, 4076956, 7134673, 14269346, 28538692]

約数ペア:

[(1, 28538692), (2, 14269346), (4, 7134673), (7, 4076956), (13, 2195284), (14, 2038478), (26, 1097642), (28, 1019239), (37, 771316), (52, 548821), (74, 385658), (91, 313612), (148, 192829), (163, 175084), (169, 168868), (182, 156806), (259, 110188), (326, 87542), (338, 84434), (364, 78403), (481, 59332), (518, 55094), (652, 43771), (676, 42217), (962, 29666), (1036, 27547), (1141, 25012), (1183, 24124), (1924, 14833), (2119, 13468), (2282, 12506), (2366, 12062), (3367, 8476), (4238, 6734), (4564, 6253), (4732, 6031)]