257942568

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{26669}}^1$

素因数の和:26722

約数の個数: 64

約数和(自身を含む): 716889600

約数和(自身を除く): 458947032

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 31, 39, 52, 62, 78, 93, 104, 124, 156, 186, 248, 312, 372, 403, 744, 806, 1209, 1612, 2418, 3224, 4836, 9672, 26669, 53338, 80007, 106676, 160014, 213352, 320028, 346697, 640056, 693394, 826739, 1040091, 1386788, 1653478, 2080182, 2480217, 2773576, 3306956, 4160364, 4960434, 6613912, 8320728, 9920868, 10747607, 19841736, 21495214, 32242821, 42990428, 64485642, 85980856, 128971284, 257942568]

約数ペア:

[(1, 257942568), (2, 128971284), (3, 85980856), (4, 64485642), (6, 42990428), (8, 32242821), (12, 21495214), (13, 19841736), (24, 10747607), (26, 9920868), (31, 8320728), (39, 6613912), (52, 4960434), (62, 4160364), (78, 3306956), (93, 2773576), (104, 2480217), (124, 2080182), (156, 1653478), (186, 1386788), (248, 1040091), (312, 826739), (372, 693394), (403, 640056), (744, 346697), (806, 320028), (1209, 213352), (1612, 160014), (2418, 106676), (3224, 80007), (4836, 53338), (9672, 26669)]