28673820

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{3251}}^1$

素因数の和:3280

約数の個数: 108

約数和(自身を含む): 101208744

約数和(自身を除く): 72534924

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 252, 294, 315, 420, 441, 490, 588, 630, 735, 882, 980, 1260, 1470, 1764, 2205, 2940, 3251, 4410, 6502, 8820, 9753, 13004, 16255, 19506, 22757, 29259, 32510, 39012, 45514, 48765, 58518, 65020, 68271, 91028, 97530, 113785, 117036, 136542, 146295, 159299, 195060, 204813, 227570, 273084, 292590, 318598, 341355, 409626, 455140, 477897, 585180, 637196, 682710, 796495, 819252, 955794, 1024065, 1365420, 1433691, 1592990, 1911588, 2048130, 2389485, 2867382, 3185980, 4096260, 4778970, 5734764, 7168455, 9557940, 14336910, 28673820]

約数ペア:

[(1, 28673820), (2, 14336910), (3, 9557940), (4, 7168455), (5, 5734764), (6, 4778970), (7, 4096260), (9, 3185980), (10, 2867382), (12, 2389485), (14, 2048130), (15, 1911588), (18, 1592990), (20, 1433691), (21, 1365420), (28, 1024065), (30, 955794), (35, 819252), (36, 796495), (42, 682710), (45, 637196), (49, 585180), (60, 477897), (63, 455140), (70, 409626), (84, 341355), (90, 318598), (98, 292590), (105, 273084), (126, 227570), (140, 204813), (147, 195060), (180, 159299), (196, 146295), (210, 136542), (245, 117036), (252, 113785), (294, 97530), (315, 91028), (420, 68271), (441, 65020), (490, 58518), (588, 48765), (630, 45514), (735, 39012), (882, 32510), (980, 29259), (1260, 22757), (1470, 19506), (1764, 16255), (2205, 13004), (2940, 9753), (3251, 8820), (4410, 6502)]